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Finding the Fourth Proportional to 854,597.16, 1,179,213.08 and 491,950.95

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Solution

The fourth proportional to 854,597.16, 1,179,213.08 and 491,950.95 is: 678,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,597.16 : 1,179,213.08 = 491,950.95 : x
  2. Step 2: Convert to fraction form
    854,597.16/1,179,213.08 = 491,950.95/x
  3. Step 3: Cross multiply
    854,597.16x = 1,179,213.08 × 491,950.95
  4. Step 4: Simplify right side
    854,597.16x = 580,114,986,602.61
  5. Step 5: Solve for x
    x = 580,114,986,602.61/854,597.16
  6. Step 6: Final answer
    x = 678,816.89

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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.