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Finding the Fourth Proportional to 561,672.60, 842,508.90 and 435,701.40

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Solution

The fourth proportional to 561,672.60, 842,508.90 and 435,701.40 is: 653,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,672.60 : 842,508.90 = 435,701.40 : x
  2. Step 2: Convert to fraction form
    561,672.60/842,508.90 = 435,701.40/x
  3. Step 3: Cross multiply
    561,672.60x = 842,508.90 × 435,701.40
  4. Step 4: Simplify right side
    561,672.60x = 367,082,307,242.46
  5. Step 5: Solve for x
    x = 367,082,307,242.46/561,672.60
  6. Step 6: Final answer
    x = 653,552.10

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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.