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Finding the Fourth Proportional to 409,635.87, 614,320.93 and 156,902.91

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Solution

The fourth proportional to 409,635.87, 614,320.93 and 156,902.91 is: 235,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,635.87 : 614,320.93 = 156,902.91 : x
  2. Step 2: Convert to fraction form
    409,635.87/614,320.93 = 156,902.91/x
  3. Step 3: Cross multiply
    409,635.87x = 614,320.93 × 156,902.91
  4. Step 4: Simplify right side
    409,635.87x = 96,388,741,590.91
  5. Step 5: Solve for x
    x = 96,388,741,590.91/409,635.87
  6. Step 6: Final answer
    x = 235,303.47

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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.