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Finding the Fourth Proportional to 418,959.61, 578,063.48 and 246,884.62

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Solution

The fourth proportional to 418,959.61, 578,063.48 and 246,884.62 is: 340,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,959.61 : 578,063.48 = 246,884.62 : x
  2. Step 2: Convert to fraction form
    418,959.61/578,063.48 = 246,884.62/x
  3. Step 3: Cross multiply
    418,959.61x = 578,063.48 × 246,884.62
  4. Step 4: Simplify right side
    418,959.61x = 142,714,982,595.68
  5. Step 5: Solve for x
    x = 142,714,982,595.68/418,959.61
  6. Step 6: Final answer
    x = 340,641.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.