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Finding the Fourth Proportional to 575,068.60, 862,862.10 and 275,433.40

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Solution

The fourth proportional to 575,068.60, 862,862.10 and 275,433.40 is: 413,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,068.60 : 862,862.10 = 275,433.40 : x
  2. Step 2: Convert to fraction form
    575,068.60/862,862.10 = 275,433.40/x
  3. Step 3: Cross multiply
    575,068.60x = 862,862.10 × 275,433.40
  4. Step 4: Simplify right side
    575,068.60x = 237,661,041,934.14
  5. Step 5: Solve for x
    x = 237,661,041,934.14/575,068.60
  6. Step 6: Final answer
    x = 413,274.25

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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.