Home / 885,738,498.10-1,328,607,747.15-656,155,986.10

Finding the Fourth Proportional to 885,738,498.10, 1,328,607,747.15 and 656,155,986.10

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Solution

The fourth proportional to 885,738,498.10, 1,328,607,747.15 and 656,155,986.10 is: 984,233,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,738,498.10 : 1,328,607,747.15 = 656,155,986.10 : x
  2. Step 2: Convert to fraction form
    885,738,498.10/1,328,607,747.15 = 656,155,986.10/x
  3. Step 3: Cross multiply
    885,738,498.10x = 1,328,607,747.15 × 656,155,986.10
  4. Step 4: Simplify right side
    885,738,498.10x = 871,773,926,471,307,776
  5. Step 5: Solve for x
    x = 871,773,926,471,307,776/885,738,498.10
  6. Step 6: Final answer
    x = 984,233,979.15

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Double scale
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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.