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Finding the Fourth Proportional to 572,712.54, 859,063.34 and 348,135

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Solution

The fourth proportional to 572,712.54, 859,063.34 and 348,135 is: 522,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,712.54 : 859,063.34 = 348,135 : x
  2. Step 2: Convert to fraction form
    572,712.54/859,063.34 = 348,135/x
  3. Step 3: Cross multiply
    572,712.54x = 859,063.34 × 348,135
  4. Step 4: Simplify right side
    572,712.54x = 299,070,015,870.90
  5. Step 5: Solve for x
    x = 299,070,015,870.90/572,712.54
  6. Step 6: Final answer
    x = 522,199.17

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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.