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Finding the Fourth Proportional to 543,151.62, 749,639.34 and 316,797.12

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Solution

The fourth proportional to 543,151.62, 749,639.34 and 316,797.12 is: 437,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,151.62 : 749,639.34 = 316,797.12 : x
  2. Step 2: Convert to fraction form
    543,151.62/749,639.34 = 316,797.12/x
  3. Step 3: Cross multiply
    543,151.62x = 749,639.34 × 316,797.12
  4. Step 4: Simplify right side
    543,151.62x = 237,483,583,950.70
  5. Step 5: Solve for x
    x = 237,483,583,950.70/543,151.62
  6. Step 6: Final answer
    x = 437,232.58

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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.