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Finding the Fourth Proportional to 662,357.70, 914,058 and 375,882.57

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Solution

The fourth proportional to 662,357.70, 914,058 and 375,882.57 is: 518,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,357.70 : 914,058 = 375,882.57 : x
  2. Step 2: Convert to fraction form
    662,357.70/914,058 = 375,882.57/x
  3. Step 3: Cross multiply
    662,357.70x = 914,058 × 375,882.57
  4. Step 4: Simplify right side
    662,357.70x = 343,578,470,169.06
  5. Step 5: Solve for x
    x = 343,578,470,169.06/662,357.70
  6. Step 6: Final answer
    x = 518,720.43

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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.