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Finding the Fourth Proportional to 569,856.79, 789,998.57 and 539,520.67

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Solution

The fourth proportional to 569,856.79, 789,998.57 and 539,520.67 is: 747,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,856.79 : 789,998.57 = 539,520.67 : x
  2. Step 2: Convert to fraction form
    569,856.79/789,998.57 = 539,520.67/x
  3. Step 3: Cross multiply
    569,856.79x = 789,998.57 × 539,520.67
  4. Step 4: Simplify right side
    569,856.79x = 426,220,557,785.44
  5. Step 5: Solve for x
    x = 426,220,557,785.44/569,856.79
  6. Step 6: Final answer
    x = 747,943.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.