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Finding the Fourth Proportional to 453,705.90, 680,126.85 and 169,320.30

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Solution

The fourth proportional to 453,705.90, 680,126.85 and 169,320.30 is: 253,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,705.90 : 680,126.85 = 169,320.30 : x
  2. Step 2: Convert to fraction form
    453,705.90/680,126.85 = 169,320.30/x
  3. Step 3: Cross multiply
    453,705.90x = 680,126.85 × 169,320.30
  4. Step 4: Simplify right side
    453,705.90x = 115,159,282,280.06
  5. Step 5: Solve for x
    x = 115,159,282,280.06/453,705.90
  6. Step 6: Final answer
    x = 253,819.23

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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.