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Finding the Fourth Proportional to 502,364.40, 753,460.20 and 186,658.80

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Solution

The fourth proportional to 502,364.40, 753,460.20 and 186,658.80 is: 279,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,364.40 : 753,460.20 = 186,658.80 : x
  2. Step 2: Convert to fraction form
    502,364.40/753,460.20 = 186,658.80/x
  3. Step 3: Cross multiply
    502,364.40x = 753,460.20 × 186,658.80
  4. Step 4: Simplify right side
    502,364.40x = 140,639,976,779.76
  5. Step 5: Solve for x
    x = 140,639,976,779.76/502,364.40
  6. Step 6: Final answer
    x = 279,956.10

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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.