Home / 1,207,566.47-1,666,445.22-663,757.98

Finding the Fourth Proportional to 1,207,566.47, 1,666,445.22 and 663,757.98

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Solution

The fourth proportional to 1,207,566.47, 1,666,445.22 and 663,757.98 is: 915,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,566.47 : 1,666,445.22 = 663,757.98 : x
  2. Step 2: Convert to fraction form
    1,207,566.47/1,666,445.22 = 663,757.98/x
  3. Step 3: Cross multiply
    1,207,566.47x = 1,666,445.22 × 663,757.98
  4. Step 4: Simplify right side
    1,207,566.47x = 1,106,116,313,007.86
  5. Step 5: Solve for x
    x = 1,106,116,313,007.86/1,207,566.47
  6. Step 6: Final answer
    x = 915,987.94

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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.