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Finding the Fourth Proportional to 470,957.30, 706,337.12 and 155,340.26

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Solution

The fourth proportional to 470,957.30, 706,337.12 and 155,340.26 is: 232,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,957.30 : 706,337.12 = 155,340.26 : x
  2. Step 2: Convert to fraction form
    470,957.30/706,337.12 = 155,340.26/x
  3. Step 3: Cross multiply
    470,957.30x = 706,337.12 × 155,340.26
  4. Step 4: Simplify right side
    470,957.30x = 109,722,591,868.45
  5. Step 5: Solve for x
    x = 109,722,591,868.45/470,957.30
  6. Step 6: Final answer
    x = 232,977.79

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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.