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Finding the Fourth Proportional to 452,842.80, 679,264.20 and 242,890.80

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Solution

The fourth proportional to 452,842.80, 679,264.20 and 242,890.80 is: 364,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,842.80 : 679,264.20 = 242,890.80 : x
  2. Step 2: Convert to fraction form
    452,842.80/679,264.20 = 242,890.80/x
  3. Step 3: Cross multiply
    452,842.80x = 679,264.20 × 242,890.80
  4. Step 4: Simplify right side
    452,842.80x = 164,987,024,949.36
  5. Step 5: Solve for x
    x = 164,987,024,949.36/452,842.80
  6. Step 6: Final answer
    x = 364,336.20

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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.