Home / 976,951.28-1,347,696.74-666,621.11

Finding the Fourth Proportional to 976,951.28, 1,347,696.74 and 666,621.11

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Solution

The fourth proportional to 976,951.28, 1,347,696.74 and 666,621.11 is: 919,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,951.28 : 1,347,696.74 = 666,621.11 : x
  2. Step 2: Convert to fraction form
    976,951.28/1,347,696.74 = 666,621.11/x
  3. Step 3: Cross multiply
    976,951.28x = 1,347,696.74 × 666,621.11
  4. Step 4: Simplify right side
    976,951.28x = 898,403,086,690.59
  5. Step 5: Solve for x
    x = 898,403,086,690.59/976,951.28
  6. Step 6: Final answer
    x = 919,598.66

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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.