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Finding the Fourth Proportional to 310,909.20, 466,018.20 and 170,768.40

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Solution

The fourth proportional to 310,909.20, 466,018.20 and 170,768.40 is: 255,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,909.20 : 466,018.20 = 170,768.40 : x
  2. Step 2: Convert to fraction form
    310,909.20/466,018.20 = 170,768.40/x
  3. Step 3: Cross multiply
    310,909.20x = 466,018.20 × 170,768.40
  4. Step 4: Simplify right side
    310,909.20x = 79,581,182,384.88
  5. Step 5: Solve for x
    x = 79,581,182,384.88/310,909.20
  6. Step 6: Final answer
    x = 255,962.78

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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.