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Finding the Fourth Proportional to 313,689.76, 432,884.27 and 175,859.55

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Solution

The fourth proportional to 313,689.76, 432,884.27 and 175,859.55 is: 242,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,689.76 : 432,884.27 = 175,859.55 : x
  2. Step 2: Convert to fraction form
    313,689.76/432,884.27 = 175,859.55/x
  3. Step 3: Cross multiply
    313,689.76x = 432,884.27 × 175,859.55
  4. Step 4: Simplify right side
    313,689.76x = 76,126,832,924.28
  5. Step 5: Solve for x
    x = 76,126,832,924.28/313,689.76
  6. Step 6: Final answer
    x = 242,681.92

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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.