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Finding the Fourth Proportional to 625,061.75, 862,534.04 and 353,153.25

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Solution

The fourth proportional to 625,061.75, 862,534.04 and 353,153.25 is: 487,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,061.75 : 862,534.04 = 353,153.25 : x
  2. Step 2: Convert to fraction form
    625,061.75/862,534.04 = 353,153.25/x
  3. Step 3: Cross multiply
    625,061.75x = 862,534.04 × 353,153.25
  4. Step 4: Simplify right side
    625,061.75x = 304,606,697,695.86
  5. Step 5: Solve for x
    x = 304,606,697,695.86/625,061.75
  6. Step 6: Final answer
    x = 487,322.57

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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.