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Finding the Fourth Proportional to 543,854.01, 750,309.17 and 400,953.81

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Solution

The fourth proportional to 543,854.01, 750,309.17 and 400,953.81 is: 553,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,854.01 : 750,309.17 = 400,953.81 : x
  2. Step 2: Convert to fraction form
    543,854.01/750,309.17 = 400,953.81/x
  3. Step 3: Cross multiply
    543,854.01x = 750,309.17 × 400,953.81
  4. Step 4: Simplify right side
    543,854.01x = 300,839,318,384.67
  5. Step 5: Solve for x
    x = 300,839,318,384.67/543,854.01
  6. Step 6: Final answer
    x = 553,161.90

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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.