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Finding the Fourth Proportional to 484,154.86, 668,124.12 and 269,290.30

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Solution

The fourth proportional to 484,154.86, 668,124.12 and 269,290.30 is: 371,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,154.86 : 668,124.12 = 269,290.30 : x
  2. Step 2: Convert to fraction form
    484,154.86/668,124.12 = 269,290.30/x
  3. Step 3: Cross multiply
    484,154.86x = 668,124.12 × 269,290.30
  4. Step 4: Simplify right side
    484,154.86x = 179,919,344,712.04
  5. Step 5: Solve for x
    x = 179,919,344,712.04/484,154.86
  6. Step 6: Final answer
    x = 371,615.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.