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Finding the Fourth Proportional to 572,225.92, 789,661.92 and 317,587.84

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Solution

The fourth proportional to 572,225.92, 789,661.92 and 317,587.84 is: 438,265.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,225.92 : 789,661.92 = 317,587.84 : x
  2. Step 2: Convert to fraction form
    572,225.92/789,661.92 = 317,587.84/x
  3. Step 3: Cross multiply
    572,225.92x = 789,661.92 × 317,587.84
  4. Step 4: Simplify right side
    572,225.92x = 250,787,023,503.05
  5. Step 5: Solve for x
    x = 250,787,023,503.05/572,225.92
  6. Step 6: Final answer
    x = 438,265.75

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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.