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Finding the Fourth Proportional to 567,051.90, 850,577.85 and 387,426.30

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Solution

The fourth proportional to 567,051.90, 850,577.85 and 387,426.30 is: 581,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,051.90 : 850,577.85 = 387,426.30 : x
  2. Step 2: Convert to fraction form
    567,051.90/850,577.85 = 387,426.30/x
  3. Step 3: Cross multiply
    567,051.90x = 850,577.85 × 387,426.30
  4. Step 4: Simplify right side
    567,051.90x = 329,536,229,287.46
  5. Step 5: Solve for x
    x = 329,536,229,287.46/567,051.90
  6. Step 6: Final answer
    x = 581,139.45

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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.