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Finding the Fourth Proportional to 653,760.45, 980,734.23 and 316,524.24

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Solution

The fourth proportional to 653,760.45, 980,734.23 and 316,524.24 is: 474,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,760.45 : 980,734.23 = 316,524.24 : x
  2. Step 2: Convert to fraction form
    653,760.45/980,734.23 = 316,524.24/x
  3. Step 3: Cross multiply
    653,760.45x = 980,734.23 × 316,524.24
  4. Step 4: Simplify right side
    653,760.45x = 310,426,156,792.74
  5. Step 5: Solve for x
    x = 310,426,156,792.74/653,760.45
  6. Step 6: Final answer
    x = 474,831.66

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Double scale
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Similar ratio
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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.