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Finding the Fourth Proportional to 579,809.80, 869,714.70 and 248,033.80

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Solution

The fourth proportional to 579,809.80, 869,714.70 and 248,033.80 is: 372,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,809.80 : 869,714.70 = 248,033.80 : x
  2. Step 2: Convert to fraction form
    579,809.80/869,714.70 = 248,033.80/x
  3. Step 3: Cross multiply
    579,809.80x = 869,714.70 × 248,033.80
  4. Step 4: Simplify right side
    579,809.80x = 215,718,641,956.86
  5. Step 5: Solve for x
    x = 215,718,641,956.86/579,809.80
  6. Step 6: Final answer
    x = 372,050.70

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Double scale
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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.