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Finding the Fourth Proportional to 567,360.80, 851,041.20 and 315,418.40

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Solution

The fourth proportional to 567,360.80, 851,041.20 and 315,418.40 is: 473,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,360.80 : 851,041.20 = 315,418.40 : x
  2. Step 2: Convert to fraction form
    567,360.80/851,041.20 = 315,418.40/x
  3. Step 3: Cross multiply
    567,360.80x = 851,041.20 × 315,418.40
  4. Step 4: Simplify right side
    567,360.80x = 268,434,053,638.08
  5. Step 5: Solve for x
    x = 268,434,053,638.08/567,360.80
  6. Step 6: Final answer
    x = 473,127.60

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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.