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Finding the Fourth Proportional to 588,643.30, 882,964.95 and 289,315.90

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Solution

The fourth proportional to 588,643.30, 882,964.95 and 289,315.90 is: 433,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,643.30 : 882,964.95 = 289,315.90 : x
  2. Step 2: Convert to fraction form
    588,643.30/882,964.95 = 289,315.90/x
  3. Step 3: Cross multiply
    588,643.30x = 882,964.95 × 289,315.90
  4. Step 4: Simplify right side
    588,643.30x = 255,455,799,177.71
  5. Step 5: Solve for x
    x = 255,455,799,177.71/588,643.30
  6. Step 6: Final answer
    x = 433,973.85

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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.