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Finding the Fourth Proportional to 649,544.91, 896,353.42 and 359,151.47

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Solution

The fourth proportional to 649,544.91, 896,353.42 and 359,151.47 is: 495,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,544.91 : 896,353.42 = 359,151.47 : x
  2. Step 2: Convert to fraction form
    649,544.91/896,353.42 = 359,151.47/x
  3. Step 3: Cross multiply
    649,544.91x = 896,353.42 × 359,151.47
  4. Step 4: Simplify right side
    649,544.91x = 321,926,650,448.94
  5. Step 5: Solve for x
    x = 321,926,650,448.94/649,544.91
  6. Step 6: Final answer
    x = 495,618.77

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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.