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Finding the Fourth Proportional to 583,841.20, 875,761.80 and 384,386.80

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Solution

The fourth proportional to 583,841.20, 875,761.80 and 384,386.80 is: 576,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,841.20 : 875,761.80 = 384,386.80 : x
  2. Step 2: Convert to fraction form
    583,841.20/875,761.80 = 384,386.80/x
  3. Step 3: Cross multiply
    583,841.20x = 875,761.80 × 384,386.80
  4. Step 4: Simplify right side
    583,841.20x = 336,631,275,864.24
  5. Step 5: Solve for x
    x = 336,631,275,864.24/583,841.20
  6. Step 6: Final answer
    x = 576,580.20

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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.