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Finding the Fourth Proportional to 564,199.20, 791,978.40 and 564,199.20

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Solution

The fourth proportional to 564,199.20, 791,978.40 and 564,199.20 is: 791,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,199.20 : 791,978.40 = 564,199.20 : x
  2. Step 2: Convert to fraction form
    564,199.20/791,978.40 = 564,199.20/x
  3. Step 3: Cross multiply
    564,199.20x = 791,978.40 × 564,199.20
  4. Step 4: Simplify right side
    564,199.20x = 446,833,579,697.28
  5. Step 5: Solve for x
    x = 446,833,579,697.28/564,199.20
  6. Step 6: Final answer
    x = 791,978.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.