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Finding the Fourth Proportional to 360,006.40, 539,491.20 and 160,163.20

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Solution

The fourth proportional to 360,006.40, 539,491.20 and 160,163.20 is: 240,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,006.40 : 539,491.20 = 160,163.20 : x
  2. Step 2: Convert to fraction form
    360,006.40/539,491.20 = 160,163.20/x
  3. Step 3: Cross multiply
    360,006.40x = 539,491.20 × 160,163.20
  4. Step 4: Simplify right side
    360,006.40x = 86,406,636,963.84
  5. Step 5: Solve for x
    x = 86,406,636,963.84/360,006.40
  6. Step 6: Final answer
    x = 240,014.17

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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.