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Finding the Fourth Proportional to 624,695.04, 862,089.60 and 382,882.56

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Solution

The fourth proportional to 624,695.04, 862,089.60 and 382,882.56 is: 528,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,695.04 : 862,089.60 = 382,882.56 : x
  2. Step 2: Convert to fraction form
    624,695.04/862,089.60 = 382,882.56/x
  3. Step 3: Cross multiply
    624,695.04x = 862,089.60 × 382,882.56
  4. Step 4: Simplify right side
    624,695.04x = 330,079,072,997.38
  5. Step 5: Solve for x
    x = 330,079,072,997.38/624,695.04
  6. Step 6: Final answer
    x = 528,384.33

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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.