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Finding the Fourth Proportional to 618,417.42, 927,612.98 and 169,138.29

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Solution

The fourth proportional to 618,417.42, 927,612.98 and 169,138.29 is: 253,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,417.42 : 927,612.98 = 169,138.29 : x
  2. Step 2: Convert to fraction form
    618,417.42/927,612.98 = 169,138.29/x
  3. Step 3: Cross multiply
    618,417.42x = 927,612.98 × 169,138.29
  4. Step 4: Simplify right side
    618,417.42x = 156,894,873,219.00
  5. Step 5: Solve for x
    x = 156,894,873,219.00/618,417.42
  6. Step 6: Final answer
    x = 253,703.84

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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.