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Finding the Fourth Proportional to 649,535.61, 896,353.62 and 359,154.66

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Solution

The fourth proportional to 649,535.61, 896,353.62 and 359,154.66 is: 495,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,535.61 : 896,353.62 = 359,154.66 : x
  2. Step 2: Convert to fraction form
    649,535.61/896,353.62 = 359,154.66/x
  3. Step 3: Cross multiply
    649,535.61x = 896,353.62 × 359,154.66
  4. Step 4: Simplify right side
    649,535.61x = 321,929,579,630.87
  5. Step 5: Solve for x
    x = 321,929,579,630.87/649,535.61
  6. Step 6: Final answer
    x = 495,630.38

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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.