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Finding the Fourth Proportional to 977,607.70, 1,466,411.55 and 809,646.10

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Solution

The fourth proportional to 977,607.70, 1,466,411.55 and 809,646.10 is: 1,214,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,607.70 : 1,466,411.55 = 809,646.10 : x
  2. Step 2: Convert to fraction form
    977,607.70/1,466,411.55 = 809,646.10/x
  3. Step 3: Cross multiply
    977,607.70x = 1,466,411.55 × 809,646.10
  4. Step 4: Simplify right side
    977,607.70x = 1,187,274,392,452.46
  5. Step 5: Solve for x
    x = 1,187,274,392,452.46/977,607.70
  6. Step 6: Final answer
    x = 1,214,469.15

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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.