Home / 885,740,511.70-1,328,610,767.55-656,157,999.70

Finding the Fourth Proportional to 885,740,511.70, 1,328,610,767.55 and 656,157,999.70

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Solution

The fourth proportional to 885,740,511.70, 1,328,610,767.55 and 656,157,999.70 is: 984,236,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,740,511.70 : 1,328,610,767.55 = 656,157,999.70 : x
  2. Step 2: Convert to fraction form
    885,740,511.70/1,328,610,767.55 = 656,157,999.70/x
  3. Step 3: Cross multiply
    885,740,511.70x = 1,328,610,767.55 × 656,157,999.70
  4. Step 4: Simplify right side
    885,740,511.70x = 871,778,583,615,489,664
  5. Step 5: Solve for x
    x = 871,778,583,615,489,664/885,740,511.70
  6. Step 6: Final answer
    x = 984,236,999.55

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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.