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Finding the Fourth Proportional to 590,601.20, 886,031.40 and 291,225.20

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Solution

The fourth proportional to 590,601.20, 886,031.40 and 291,225.20 is: 436,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,601.20 : 886,031.40 = 291,225.20 : x
  2. Step 2: Convert to fraction form
    590,601.20/886,031.40 = 291,225.20/x
  3. Step 3: Cross multiply
    590,601.20x = 886,031.40 × 291,225.20
  4. Step 4: Simplify right side
    590,601.20x = 258,034,671,671.28
  5. Step 5: Solve for x
    x = 258,034,671,671.28/590,601.20
  6. Step 6: Final answer
    x = 436,901.71

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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.