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Finding the Fourth Proportional to 591,713.40, 887,570.10 and 171,031.80

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Solution

The fourth proportional to 591,713.40, 887,570.10 and 171,031.80 is: 256,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,713.40 : 887,570.10 = 171,031.80 : x
  2. Step 2: Convert to fraction form
    591,713.40/887,570.10 = 171,031.80/x
  3. Step 3: Cross multiply
    591,713.40x = 887,570.10 × 171,031.80
  4. Step 4: Simplify right side
    591,713.40x = 151,802,711,829.18
  5. Step 5: Solve for x
    x = 151,802,711,829.18/591,713.40
  6. Step 6: Final answer
    x = 256,547.70

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Similar ratio
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1.5x scale

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.