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Finding the Fourth Proportional to 452,573.20, 678,859.80 and 295,109.20

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Solution

The fourth proportional to 452,573.20, 678,859.80 and 295,109.20 is: 442,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,573.20 : 678,859.80 = 295,109.20 : x
  2. Step 2: Convert to fraction form
    452,573.20/678,859.80 = 295,109.20/x
  3. Step 3: Cross multiply
    452,573.20x = 678,859.80 × 295,109.20
  4. Step 4: Simplify right side
    452,573.20x = 200,337,772,490.16
  5. Step 5: Solve for x
    x = 200,337,772,490.16/452,573.20
  6. Step 6: Final answer
    x = 442,663.80

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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.