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Finding the Fourth Proportional to 548,807.16, 757,263.38 and 344,712.68

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Solution

The fourth proportional to 548,807.16, 757,263.38 and 344,712.68 is: 475,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,807.16 : 757,263.38 = 344,712.68 : x
  2. Step 2: Convert to fraction form
    548,807.16/757,263.38 = 344,712.68/x
  3. Step 3: Cross multiply
    548,807.16x = 757,263.38 × 344,712.68
  4. Step 4: Simplify right side
    548,807.16x = 261,038,288,454.53
  5. Step 5: Solve for x
    x = 261,038,288,454.53/548,807.16
  6. Step 6: Final answer
    x = 475,646.65

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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.