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Finding the Fourth Proportional to 390,001.23, 584,600.46 and 190,074.24

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Solution

The fourth proportional to 390,001.23, 584,600.46 and 190,074.24 is: 284,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,001.23 : 584,600.46 = 190,074.24 : x
  2. Step 2: Convert to fraction form
    390,001.23/584,600.46 = 190,074.24/x
  3. Step 3: Cross multiply
    390,001.23x = 584,600.46 × 190,074.24
  4. Step 4: Simplify right side
    390,001.23x = 111,117,488,138.15
  5. Step 5: Solve for x
    x = 111,117,488,138.15/390,001.23
  6. Step 6: Final answer
    x = 284,915.74

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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.