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Finding the Fourth Proportional to 615,676.80, 924,206.40 and 476,054.40

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Solution

The fourth proportional to 615,676.80, 924,206.40 and 476,054.40 is: 714,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,676.80 : 924,206.40 = 476,054.40 : x
  2. Step 2: Convert to fraction form
    615,676.80/924,206.40 = 476,054.40/x
  3. Step 3: Cross multiply
    615,676.80x = 924,206.40 × 476,054.40
  4. Step 4: Simplify right side
    615,676.80x = 439,972,523,228.16
  5. Step 5: Solve for x
    x = 439,972,523,228.16/615,676.80
  6. Step 6: Final answer
    x = 714,616.05

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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.