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Finding the Fourth Proportional to 384,897.40, 577,346.10 and 363,124.60

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Solution

The fourth proportional to 384,897.40, 577,346.10 and 363,124.60 is: 544,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,897.40 : 577,346.10 = 363,124.60 : x
  2. Step 2: Convert to fraction form
    384,897.40/577,346.10 = 363,124.60/x
  3. Step 3: Cross multiply
    384,897.40x = 577,346.10 × 363,124.60
  4. Step 4: Simplify right side
    384,897.40x = 209,648,571,624.06
  5. Step 5: Solve for x
    x = 209,648,571,624.06/384,897.40
  6. Step 6: Final answer
    x = 544,686.90

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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.