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Finding the Fourth Proportional to 717,191.82, 987,588.36 and 701,278.38

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Solution

The fourth proportional to 717,191.82, 987,588.36 and 701,278.38 is: 965,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,191.82 : 987,588.36 = 701,278.38 : x
  2. Step 2: Convert to fraction form
    717,191.82/987,588.36 = 701,278.38/x
  3. Step 3: Cross multiply
    717,191.82x = 987,588.36 × 701,278.38
  4. Step 4: Simplify right side
    717,191.82x = 692,574,365,207.66
  5. Step 5: Solve for x
    x = 692,574,365,207.66/717,191.82
  6. Step 6: Final answer
    x = 965,675.22

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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.