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Finding the Fourth Proportional to 569,129.10, 853,693.65 and 542,885.10

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Solution

The fourth proportional to 569,129.10, 853,693.65 and 542,885.10 is: 814,327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,129.10 : 853,693.65 = 542,885.10 : x
  2. Step 2: Convert to fraction form
    569,129.10/853,693.65 = 542,885.10/x
  3. Step 3: Cross multiply
    569,129.10x = 853,693.65 × 542,885.10
  4. Step 4: Simplify right side
    569,129.10x = 463,457,562,549.62
  5. Step 5: Solve for x
    x = 463,457,562,549.62/569,129.10
  6. Step 6: Final answer
    x = 814,327.65

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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.