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Finding the Fourth Proportional to 615,664.80, 924,188.40 and 476,042.40

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Solution

The fourth proportional to 615,664.80, 924,188.40 and 476,042.40 is: 714,598.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,664.80 : 924,188.40 = 476,042.40 : x
  2. Step 2: Convert to fraction form
    615,664.80/924,188.40 = 476,042.40/x
  3. Step 3: Cross multiply
    615,664.80x = 924,188.40 × 476,042.40
  4. Step 4: Simplify right side
    615,664.80x = 439,952,863,988.16
  5. Step 5: Solve for x
    x = 439,952,863,988.16/615,664.80
  6. Step 6: Final answer
    x = 714,598.05

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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.