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Finding the Fourth Proportional to 588,641.80, 882,962.70 and 289,314.40

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Solution

The fourth proportional to 588,641.80, 882,962.70 and 289,314.40 is: 433,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,641.80 : 882,962.70 = 289,314.40 : x
  2. Step 2: Convert to fraction form
    588,641.80/882,962.70 = 289,314.40/x
  3. Step 3: Cross multiply
    588,641.80x = 882,962.70 × 289,314.40
  4. Step 4: Simplify right side
    588,641.80x = 255,453,823,772.88
  5. Step 5: Solve for x
    x = 255,453,823,772.88/588,641.80
  6. Step 6: Final answer
    x = 433,971.60

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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.