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Finding the Fourth Proportional to 288,934.30, 433,228.65 and 148,966.30

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Solution

The fourth proportional to 288,934.30, 433,228.65 and 148,966.30 is: 223,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,934.30 : 433,228.65 = 148,966.30 : x
  2. Step 2: Convert to fraction form
    288,934.30/433,228.65 = 148,966.30/x
  3. Step 3: Cross multiply
    288,934.30x = 433,228.65 × 148,966.30
  4. Step 4: Simplify right side
    288,934.30x = 64,536,469,044.50
  5. Step 5: Solve for x
    x = 64,536,469,044.50/288,934.30
  6. Step 6: Final answer
    x = 223,360.36

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1.5x scale

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.