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Finding the Fourth Proportional to 362,421.84, 543,417.42 and 137,798.70

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Solution

The fourth proportional to 362,421.84, 543,417.42 and 137,798.70 is: 206,616.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,421.84 : 543,417.42 = 137,798.70 : x
  2. Step 2: Convert to fraction form
    362,421.84/543,417.42 = 137,798.70/x
  3. Step 3: Cross multiply
    362,421.84x = 543,417.42 × 137,798.70
  4. Step 4: Simplify right side
    362,421.84x = 74,882,214,033.35
  5. Step 5: Solve for x
    x = 74,882,214,033.35/362,421.84
  6. Step 6: Final answer
    x = 206,616.17

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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.