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Finding the Fourth Proportional to 649,543.62, 896,351.66 and 359,150.19

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Solution

The fourth proportional to 649,543.62, 896,351.66 and 359,150.19 is: 495,617.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,543.62 : 896,351.66 = 359,150.19 : x
  2. Step 2: Convert to fraction form
    649,543.62/896,351.66 = 359,150.19/x
  3. Step 3: Cross multiply
    649,543.62x = 896,351.66 × 359,150.19
  4. Step 4: Simplify right side
    649,543.62x = 321,924,868,995.82
  5. Step 5: Solve for x
    x = 321,924,868,995.82/649,543.62
  6. Step 6: Final answer
    x = 495,617.01

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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.