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Finding the Fourth Proportional to 362,841.60, 500,685.12 and 209,868.24

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Solution

The fourth proportional to 362,841.60, 500,685.12 and 209,868.24 is: 289,597.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,841.60 : 500,685.12 = 209,868.24 : x
  2. Step 2: Convert to fraction form
    362,841.60/500,685.12 = 209,868.24/x
  3. Step 3: Cross multiply
    362,841.60x = 500,685.12 × 209,868.24
  4. Step 4: Simplify right side
    362,841.60x = 105,077,904,928.59
  5. Step 5: Solve for x
    x = 105,077,904,928.59/362,841.60
  6. Step 6: Final answer
    x = 289,597.18

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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.