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Finding the Fourth Proportional to 532,402.60, 798,603.90 and 511,407.40

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Solution

The fourth proportional to 532,402.60, 798,603.90 and 511,407.40 is: 767,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,402.60 : 798,603.90 = 511,407.40 : x
  2. Step 2: Convert to fraction form
    532,402.60/798,603.90 = 511,407.40/x
  3. Step 3: Cross multiply
    532,402.60x = 798,603.90 × 511,407.40
  4. Step 4: Simplify right side
    532,402.60x = 408,411,944,128.86
  5. Step 5: Solve for x
    x = 408,411,944,128.86/532,402.60
  6. Step 6: Final answer
    x = 767,111.10

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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.