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Finding the Fourth Proportional to 669,765.79, 924,308.90 and 411,654.00

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Solution

The fourth proportional to 669,765.79, 924,308.90 and 411,654.00 is: 568,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,765.79 : 924,308.90 = 411,654.00 : x
  2. Step 2: Convert to fraction form
    669,765.79/924,308.90 = 411,654.00/x
  3. Step 3: Cross multiply
    669,765.79x = 924,308.90 × 411,654.00
  4. Step 4: Simplify right side
    669,765.79x = 380,495,452,515.18
  5. Step 5: Solve for x
    x = 380,495,452,515.18/669,765.79
  6. Step 6: Final answer
    x = 568,102.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.