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Finding the Fourth Proportional to 541,963.40, 747,865.58 and 300,256.16

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Solution

The fourth proportional to 541,963.40, 747,865.58 and 300,256.16 is: 414,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,963.40 : 747,865.58 = 300,256.16 : x
  2. Step 2: Convert to fraction form
    541,963.40/747,865.58 = 300,256.16/x
  3. Step 3: Cross multiply
    541,963.40x = 747,865.58 × 300,256.16
  4. Step 4: Simplify right side
    541,963.40x = 224,551,247,246.97
  5. Step 5: Solve for x
    x = 224,551,247,246.97/541,963.40
  6. Step 6: Final answer
    x = 414,329.17

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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.