Home / 1,207,378.64-1,666,101.95-663,502.73

Finding the Fourth Proportional to 1,207,378.64, 1,666,101.95 and 663,502.73

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Solution

The fourth proportional to 1,207,378.64, 1,666,101.95 and 663,502.73 is: 915,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,378.64 : 1,666,101.95 = 663,502.73 : x
  2. Step 2: Convert to fraction form
    1,207,378.64/1,666,101.95 = 663,502.73/x
  3. Step 3: Cross multiply
    1,207,378.64x = 1,666,101.95 × 663,502.73
  4. Step 4: Simplify right side
    1,207,378.64x = 1,105,463,183,952.81
  5. Step 5: Solve for x
    x = 1,105,463,183,952.81/1,207,378.64
  6. Step 6: Final answer
    x = 915,589.48

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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.