Home / 866,155.33-1,195,302.08-478,996.80

Finding the Fourth Proportional to 866,155.33, 1,195,302.08 and 478,996.80

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Solution

The fourth proportional to 866,155.33, 1,195,302.08 and 478,996.80 is: 661,019.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,155.33 : 1,195,302.08 = 478,996.80 : x
  2. Step 2: Convert to fraction form
    866,155.33/1,195,302.08 = 478,996.80/x
  3. Step 3: Cross multiply
    866,155.33x = 1,195,302.08 × 478,996.80
  4. Step 4: Simplify right side
    866,155.33x = 572,545,871,353.34
  5. Step 5: Solve for x
    x = 572,545,871,353.34/866,155.33
  6. Step 6: Final answer
    x = 661,019.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.