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Finding the Fourth Proportional to 527,153.40, 790,730.10 and 242,843.40

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Solution

The fourth proportional to 527,153.40, 790,730.10 and 242,843.40 is: 364,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,153.40 : 790,730.10 = 242,843.40 : x
  2. Step 2: Convert to fraction form
    527,153.40/790,730.10 = 242,843.40/x
  3. Step 3: Cross multiply
    527,153.40x = 790,730.10 × 242,843.40
  4. Step 4: Simplify right side
    527,153.40x = 192,023,585,966.34
  5. Step 5: Solve for x
    x = 192,023,585,966.34/527,153.40
  6. Step 6: Final answer
    x = 364,265.10

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Similar ratio
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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.