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Finding the Fourth Proportional to 527,186.40, 790,779.60 and 501,381.60

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Solution

The fourth proportional to 527,186.40, 790,779.60 and 501,381.60 is: 752,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,186.40 : 790,779.60 = 501,381.60 : x
  2. Step 2: Convert to fraction form
    527,186.40/790,779.60 = 501,381.60/x
  3. Step 3: Cross multiply
    527,186.40x = 790,779.60 × 501,381.60
  4. Step 4: Simplify right side
    527,186.40x = 396,482,341,095.36
  5. Step 5: Solve for x
    x = 396,482,341,095.36/527,186.40
  6. Step 6: Final answer
    x = 752,072.40

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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.