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Finding the Fourth Proportional to 908,656.49, 1,253,954.51 and 500,773.01

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Solution

The fourth proportional to 908,656.49, 1,253,954.51 and 500,773.01 is: 691,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,656.49 : 1,253,954.51 = 500,773.01 : x
  2. Step 2: Convert to fraction form
    908,656.49/1,253,954.51 = 500,773.01/x
  3. Step 3: Cross multiply
    908,656.49x = 1,253,954.51 × 500,773.01
  4. Step 4: Simplify right side
    908,656.49x = 627,946,574,375.78
  5. Step 5: Solve for x
    x = 627,946,574,375.78/908,656.49
  6. Step 6: Final answer
    x = 691,071.47

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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.