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Finding the Fourth Proportional to 707,353.98, 976,148.49 and 385,066.44

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Solution

The fourth proportional to 707,353.98, 976,148.49 and 385,066.44 is: 531,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,353.98 : 976,148.49 = 385,066.44 : x
  2. Step 2: Convert to fraction form
    707,353.98/976,148.49 = 385,066.44/x
  3. Step 3: Cross multiply
    707,353.98x = 976,148.49 × 385,066.44
  4. Step 4: Simplify right side
    707,353.98x = 375,882,023,955.68
  5. Step 5: Solve for x
    x = 375,882,023,955.68/707,353.98
  6. Step 6: Final answer
    x = 531,391.69

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Similar ratio
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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.