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Finding the Fourth Proportional to 502,403.60, 753,605.40 and 368,559.20

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Solution

The fourth proportional to 502,403.60, 753,605.40 and 368,559.20 is: 552,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,403.60 : 753,605.40 = 368,559.20 : x
  2. Step 2: Convert to fraction form
    502,403.60/753,605.40 = 368,559.20/x
  3. Step 3: Cross multiply
    502,403.60x = 753,605.40 × 368,559.20
  4. Step 4: Simplify right side
    502,403.60x = 277,748,203,339.68
  5. Step 5: Solve for x
    x = 277,748,203,339.68/502,403.60
  6. Step 6: Final answer
    x = 552,838.80

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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.