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Finding the Fourth Proportional to 572,712.48, 789,799.32 and 343,236.24

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Solution

The fourth proportional to 572,712.48, 789,799.32 and 343,236.24 is: 473,340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,712.48 : 789,799.32 = 343,236.24 : x
  2. Step 2: Convert to fraction form
    572,712.48/789,799.32 = 343,236.24/x
  3. Step 3: Cross multiply
    572,712.48x = 789,799.32 × 343,236.24
  4. Step 4: Simplify right side
    572,712.48x = 271,087,748,951.36
  5. Step 5: Solve for x
    x = 271,087,748,951.36/572,712.48
  6. Step 6: Final answer
    x = 473,340.04

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Double scale
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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.