Home / 621,821.60-932,732.40-574,128.80

Finding the Fourth Proportional to 621,821.60, 932,732.40 and 574,128.80

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Solution

The fourth proportional to 621,821.60, 932,732.40 and 574,128.80 is: 861,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,821.60 : 932,732.40 = 574,128.80 : x
  2. Step 2: Convert to fraction form
    621,821.60/932,732.40 = 574,128.80/x
  3. Step 3: Cross multiply
    621,821.60x = 932,732.40 × 574,128.80
  4. Step 4: Simplify right side
    621,821.60x = 535,508,533,533.12
  5. Step 5: Solve for x
    x = 535,508,533,533.12/621,821.60
  6. Step 6: Final answer
    x = 861,193.20

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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.