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Finding the Fourth Proportional to 516,753.70, 775,080.40 and 156,927.65

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Solution

The fourth proportional to 516,753.70, 775,080.40 and 156,927.65 is: 235,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,753.70 : 775,080.40 = 156,927.65 : x
  2. Step 2: Convert to fraction form
    516,753.70/775,080.40 = 156,927.65/x
  3. Step 3: Cross multiply
    516,753.70x = 775,080.40 × 156,927.65
  4. Step 4: Simplify right side
    516,753.70x = 121,631,545,733.06
  5. Step 5: Solve for x
    x = 121,631,545,733.06/516,753.70
  6. Step 6: Final answer
    x = 235,376.25

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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.