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Finding the Fourth Proportional to 611,951.16, 917,926.59 and 191,227.05

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Solution

The fourth proportional to 611,951.16, 917,926.59 and 191,227.05 is: 286,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,951.16 : 917,926.59 = 191,227.05 : x
  2. Step 2: Convert to fraction form
    611,951.16/917,926.59 = 191,227.05/x
  3. Step 3: Cross multiply
    611,951.16x = 917,926.59 × 191,227.05
  4. Step 4: Simplify right side
    611,951.16x = 175,532,393,922.26
  5. Step 5: Solve for x
    x = 175,532,393,922.26/611,951.16
  6. Step 6: Final answer
    x = 286,840.53

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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.