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Finding the Fourth Proportional to 484,483.40, 726,854.70 and 344,515.40

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Solution

The fourth proportional to 484,483.40, 726,854.70 and 344,515.40 is: 516,865.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,483.40 : 726,854.70 = 344,515.40 : x
  2. Step 2: Convert to fraction form
    484,483.40/726,854.70 = 344,515.40/x
  3. Step 3: Cross multiply
    484,483.40x = 726,854.70 × 344,515.40
  4. Step 4: Simplify right side
    484,483.40x = 250,412,637,712.38
  5. Step 5: Solve for x
    x = 250,412,637,712.38/484,483.40
  6. Step 6: Final answer
    x = 516,865.26

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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.