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Finding the Fourth Proportional to 615,657.04, 924,053.24 and 312,264.12

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Solution

The fourth proportional to 615,657.04, 924,053.24 and 312,264.12 is: 468,684.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,657.04 : 924,053.24 = 312,264.12 : x
  2. Step 2: Convert to fraction form
    615,657.04/924,053.24 = 312,264.12/x
  3. Step 3: Cross multiply
    615,657.04x = 924,053.24 × 312,264.12
  4. Step 4: Simplify right side
    615,657.04x = 288,548,671,821.75
  5. Step 5: Solve for x
    x = 288,548,671,821.75/615,657.04
  6. Step 6: Final answer
    x = 468,684.11

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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.