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Finding the Fourth Proportional to 586,000.80, 879,584.40 and 286,819.20

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Solution

The fourth proportional to 586,000.80, 879,584.40 and 286,819.20 is: 430,514.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,000.80 : 879,584.40 = 286,819.20 : x
  2. Step 2: Convert to fraction form
    586,000.80/879,584.40 = 286,819.20/x
  3. Step 3: Cross multiply
    586,000.80x = 879,584.40 × 286,819.20
  4. Step 4: Simplify right side
    586,000.80x = 252,281,693,940.48
  5. Step 5: Solve for x
    x = 252,281,693,940.48/586,000.80
  6. Step 6: Final answer
    x = 430,514.25

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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.