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Finding the Fourth Proportional to 618,697.54, 927,415.74 and 564,153.90

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Solution

The fourth proportional to 618,697.54, 927,415.74 and 564,153.90 is: 845,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,697.54 : 927,415.74 = 564,153.90 : x
  2. Step 2: Convert to fraction form
    618,697.54/927,415.74 = 564,153.90/x
  3. Step 3: Cross multiply
    618,697.54x = 927,415.74 × 564,153.90
  4. Step 4: Simplify right side
    618,697.54x = 523,205,205,280.15
  5. Step 5: Solve for x
    x = 523,205,205,280.15/618,697.54
  6. Step 6: Final answer
    x = 845,655.87

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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.