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Finding the Fourth Proportional to 362,117.30, 543,175.95 and 212,429.30

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Solution

The fourth proportional to 362,117.30, 543,175.95 and 212,429.30 is: 318,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,117.30 : 543,175.95 = 212,429.30 : x
  2. Step 2: Convert to fraction form
    362,117.30/543,175.95 = 212,429.30/x
  3. Step 3: Cross multiply
    362,117.30x = 543,175.95 × 212,429.30
  4. Step 4: Simplify right side
    362,117.30x = 115,386,486,835.34
  5. Step 5: Solve for x
    x = 115,386,486,835.34/362,117.30
  6. Step 6: Final answer
    x = 318,643.95

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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.