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Finding the Fourth Proportional to 572,734.60, 859,101.90 and 292,215.40

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Solution

The fourth proportional to 572,734.60, 859,101.90 and 292,215.40 is: 438,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,734.60 : 859,101.90 = 292,215.40 : x
  2. Step 2: Convert to fraction form
    572,734.60/859,101.90 = 292,215.40/x
  3. Step 3: Cross multiply
    572,734.60x = 859,101.90 × 292,215.40
  4. Step 4: Simplify right side
    572,734.60x = 251,042,805,349.26
  5. Step 5: Solve for x
    x = 251,042,805,349.26/572,734.60
  6. Step 6: Final answer
    x = 438,323.10

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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.