Home / 1,161,384.65-1,602,755.76-645,177.64

Finding the Fourth Proportional to 1,161,384.65, 1,602,755.76 and 645,177.64

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Solution

The fourth proportional to 1,161,384.65, 1,602,755.76 and 645,177.64 is: 890,370.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,384.65 : 1,602,755.76 = 645,177.64 : x
  2. Step 2: Convert to fraction form
    1,161,384.65/1,602,755.76 = 645,177.64/x
  3. Step 3: Cross multiply
    1,161,384.65x = 1,602,755.76 × 645,177.64
  4. Step 4: Simplify right side
    1,161,384.65x = 1,034,062,187,366.09
  5. Step 5: Solve for x
    x = 1,034,062,187,366.09/1,161,384.65
  6. Step 6: Final answer
    x = 890,370.12

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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.