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Finding the Fourth Proportional to 568,947.60, 853,421.40 and 542,703.60

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Solution

The fourth proportional to 568,947.60, 853,421.40 and 542,703.60 is: 814,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,947.60 : 853,421.40 = 542,703.60 : x
  2. Step 2: Convert to fraction form
    568,947.60/853,421.40 = 542,703.60/x
  3. Step 3: Cross multiply
    568,947.60x = 853,421.40 × 542,703.60
  4. Step 4: Simplify right side
    568,947.60x = 463,154,866,097.04
  5. Step 5: Solve for x
    x = 463,154,866,097.04/568,947.60
  6. Step 6: Final answer
    x = 814,055.40

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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.