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Finding the Fourth Proportional to 614,279.52, 921,421.62 and 187,813.62

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Solution

The fourth proportional to 614,279.52, 921,421.62 and 187,813.62 is: 281,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,279.52 : 921,421.62 = 187,813.62 : x
  2. Step 2: Convert to fraction form
    614,279.52/921,421.62 = 187,813.62/x
  3. Step 3: Cross multiply
    614,279.52x = 921,421.62 × 187,813.62
  4. Step 4: Simplify right side
    614,279.52x = 173,055,529,998.46
  5. Step 5: Solve for x
    x = 173,055,529,998.46/614,279.52
  6. Step 6: Final answer
    x = 281,721.15

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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.