Home / 621,828.60-932,742.90-574,135.80

Finding the Fourth Proportional to 621,828.60, 932,742.90 and 574,135.80

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Solution

The fourth proportional to 621,828.60, 932,742.90 and 574,135.80 is: 861,203.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,828.60 : 932,742.90 = 574,135.80 : x
  2. Step 2: Convert to fraction form
    621,828.60/932,742.90 = 574,135.80/x
  3. Step 3: Cross multiply
    621,828.60x = 932,742.90 × 574,135.80
  4. Step 4: Simplify right side
    621,828.60x = 535,521,091,085.82
  5. Step 5: Solve for x
    x = 535,521,091,085.82/621,828.60
  6. Step 6: Final answer
    x = 861,203.70

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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.