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Finding the Fourth Proportional to 572,519.70, 858,779.55 and 502,535.70

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Solution

The fourth proportional to 572,519.70, 858,779.55 and 502,535.70 is: 753,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,519.70 : 858,779.55 = 502,535.70 : x
  2. Step 2: Convert to fraction form
    572,519.70/858,779.55 = 502,535.70/x
  3. Step 3: Cross multiply
    572,519.70x = 858,779.55 × 502,535.70
  4. Step 4: Simplify right side
    572,519.70x = 431,567,382,304.94
  5. Step 5: Solve for x
    x = 431,567,382,304.94/572,519.70
  6. Step 6: Final answer
    x = 753,803.55

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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.