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Finding the Fourth Proportional to 528,062, 791,393.16 and 439,882.16

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Solution

The fourth proportional to 528,062, 791,393.16 and 439,882.16 is: 659,240.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,062 : 791,393.16 = 439,882.16 : x
  2. Step 2: Convert to fraction form
    528,062/791,393.16 = 439,882.16/x
  3. Step 3: Cross multiply
    528,062x = 791,393.16 × 439,882.16
  4. Step 4: Simplify right side
    528,062x = 348,119,732,630.03
  5. Step 5: Solve for x
    x = 348,119,732,630.03/528,062
  6. Step 6: Final answer
    x = 659,240.26

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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.