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Finding the Fourth Proportional to 447,148.36, 617,061.81 and 253,592.92

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Solution

The fourth proportional to 447,148.36, 617,061.81 and 253,592.92 is: 349,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,148.36 : 617,061.81 = 253,592.92 : x
  2. Step 2: Convert to fraction form
    447,148.36/617,061.81 = 253,592.92/x
  3. Step 3: Cross multiply
    447,148.36x = 617,061.81 × 253,592.92
  4. Step 4: Simplify right side
    447,148.36x = 156,482,506,218.39
  5. Step 5: Solve for x
    x = 156,482,506,218.39/447,148.36
  6. Step 6: Final answer
    x = 349,956.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.