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Finding the Fourth Proportional to 586,321.10, 879,481.65 and 397,364.30

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Solution

The fourth proportional to 586,321.10, 879,481.65 and 397,364.30 is: 596,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,321.10 : 879,481.65 = 397,364.30 : x
  2. Step 2: Convert to fraction form
    586,321.10/879,481.65 = 397,364.30/x
  3. Step 3: Cross multiply
    586,321.10x = 879,481.65 × 397,364.30
  4. Step 4: Simplify right side
    586,321.10x = 349,474,610,215.10
  5. Step 5: Solve for x
    x = 349,474,610,215.10/586,321.10
  6. Step 6: Final answer
    x = 596,046.45

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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.