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Finding the Fourth Proportional to 647,714.40, 970,016.40 and 523,298.40

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Solution

The fourth proportional to 647,714.40, 970,016.40 and 523,298.40 is: 783,691.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,714.40 : 970,016.40 = 523,298.40 : x
  2. Step 2: Convert to fraction form
    647,714.40/970,016.40 = 523,298.40/x
  3. Step 3: Cross multiply
    647,714.40x = 970,016.40 × 523,298.40
  4. Step 4: Simplify right side
    647,714.40x = 507,608,030,093.76
  5. Step 5: Solve for x
    x = 507,608,030,093.76/647,714.40
  6. Step 6: Final answer
    x = 783,691.13

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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.