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Finding the Fourth Proportional to 885,736,010.70, 1,328,604,016.05 and 656,153,498.70

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Solution

The fourth proportional to 885,736,010.70, 1,328,604,016.05 and 656,153,498.70 is: 984,230,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,010.70 : 1,328,604,016.05 = 656,153,498.70 : x
  2. Step 2: Convert to fraction form
    885,736,010.70/1,328,604,016.05 = 656,153,498.70/x
  3. Step 3: Cross multiply
    885,736,010.70x = 1,328,604,016.05 × 656,153,498.70
  4. Step 4: Simplify right side
    885,736,010.70x = 871,768,173,518,078,464
  5. Step 5: Solve for x
    x = 871,768,173,518,078,464/885,736,010.70
  6. Step 6: Final answer
    x = 984,230,248.05

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Double scale
Find fourth proportional to 885,736,011.70, 1,328,604,017.55 and 656,153,499.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.