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Finding the Fourth Proportional to 564,897.40, 847,346.10 and 190,920.40

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Solution

The fourth proportional to 564,897.40, 847,346.10 and 190,920.40 is: 286,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,897.40 : 847,346.10 = 190,920.40 : x
  2. Step 2: Convert to fraction form
    564,897.40/847,346.10 = 190,920.40/x
  3. Step 3: Cross multiply
    564,897.40x = 847,346.10 × 190,920.40
  4. Step 4: Simplify right side
    564,897.40x = 161,775,656,350.44
  5. Step 5: Solve for x
    x = 161,775,656,350.44/564,897.40
  6. Step 6: Final answer
    x = 286,380.60

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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.