Home / 1,207,515.86-1,666,336.78-691,252.34

Finding the Fourth Proportional to 1,207,515.86, 1,666,336.78 and 691,252.34

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Solution

The fourth proportional to 1,207,515.86, 1,666,336.78 and 691,252.34 is: 953,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,515.86 : 1,666,336.78 = 691,252.34 : x
  2. Step 2: Convert to fraction form
    1,207,515.86/1,666,336.78 = 691,252.34/x
  3. Step 3: Cross multiply
    1,207,515.86x = 1,666,336.78 × 691,252.34
  4. Step 4: Simplify right side
    1,207,515.86x = 1,151,859,194,946.80
  5. Step 5: Solve for x
    x = 1,151,859,194,946.80/1,207,515.86
  6. Step 6: Final answer
    x = 953,908.13

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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.