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Finding the Fourth Proportional to 572,348.40, 857,356.20 and 292,023.60

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Solution

The fourth proportional to 572,348.40, 857,356.20 and 292,023.60 is: 437,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,348.40 : 857,356.20 = 292,023.60 : x
  2. Step 2: Convert to fraction form
    572,348.40/857,356.20 = 292,023.60/x
  3. Step 3: Cross multiply
    572,348.40x = 857,356.20 × 292,023.60
  4. Step 4: Simplify right side
    572,348.40x = 250,368,244,006.32
  5. Step 5: Solve for x
    x = 250,368,244,006.32/572,348.40
  6. Step 6: Final answer
    x = 437,440.28

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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.