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Finding the Fourth Proportional to 707,433.11, 976,275.23 and 385,160.88

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Solution

The fourth proportional to 707,433.11, 976,275.23 and 385,160.88 is: 531,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,433.11 : 976,275.23 = 385,160.88 : x
  2. Step 2: Convert to fraction form
    707,433.11/976,275.23 = 385,160.88/x
  3. Step 3: Cross multiply
    707,433.11x = 976,275.23 × 385,160.88
  4. Step 4: Simplify right side
    707,433.11x = 376,023,024,783.20
  5. Step 5: Solve for x
    x = 376,023,024,783.20/707,433.11
  6. Step 6: Final answer
    x = 531,531.56

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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.