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Finding the Fourth Proportional to 572,366.61, 789,826.41 and 317,697.75

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Solution

The fourth proportional to 572,366.61, 789,826.41 and 317,697.75 is: 438,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,366.61 : 789,826.41 = 317,697.75 : x
  2. Step 2: Convert to fraction form
    572,366.61/789,826.41 = 317,697.75/x
  3. Step 3: Cross multiply
    572,366.61x = 789,826.41 × 317,697.75
  4. Step 4: Simplify right side
    572,366.61x = 250,926,073,347.58
  5. Step 5: Solve for x
    x = 250,926,073,347.58/572,366.61
  6. Step 6: Final answer
    x = 438,400.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.