Home / 1,189,510.57-1,641,525.93-645,646.23

Finding the Fourth Proportional to 1,189,510.57, 1,641,525.93 and 645,646.23

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Solution

The fourth proportional to 1,189,510.57, 1,641,525.93 and 645,646.23 is: 890,992.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,510.57 : 1,641,525.93 = 645,646.23 : x
  2. Step 2: Convert to fraction form
    1,189,510.57/1,641,525.93 = 645,646.23/x
  3. Step 3: Cross multiply
    1,189,510.57x = 1,641,525.93 × 645,646.23
  4. Step 4: Simplify right side
    1,189,510.57x = 1,059,845,028,151.74
  5. Step 5: Solve for x
    x = 1,059,845,028,151.74/1,189,510.57
  6. Step 6: Final answer
    x = 890,992.53

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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.