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Finding the Fourth Proportional to 390,044.55, 584,192.03 and 390,044.55

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Solution

The fourth proportional to 390,044.55, 584,192.03 and 390,044.55 is: 584,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,044.55 : 584,192.03 = 390,044.55 : x
  2. Step 2: Convert to fraction form
    390,044.55/584,192.03 = 390,044.55/x
  3. Step 3: Cross multiply
    390,044.55x = 584,192.03 × 390,044.55
  4. Step 4: Simplify right side
    390,044.55x = 227,860,915,504.71
  5. Step 5: Solve for x
    x = 227,860,915,504.71/390,044.55
  6. Step 6: Final answer
    x = 584,192.03

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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.