Home / 1,189,799.49-1,641,923.33-645,934.51

Finding the Fourth Proportional to 1,189,799.49, 1,641,923.33 and 645,934.51

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Solution

The fourth proportional to 1,189,799.49, 1,641,923.33 and 645,934.51 is: 891,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,799.49 : 1,641,923.33 = 645,934.51 : x
  2. Step 2: Convert to fraction form
    1,189,799.49/1,641,923.33 = 645,934.51/x
  3. Step 3: Cross multiply
    1,189,799.49x = 1,641,923.33 × 645,934.51
  4. Step 4: Simplify right side
    1,189,799.49x = 1,060,574,941,621.12
  5. Step 5: Solve for x
    x = 1,060,574,941,621.12/1,189,799.49
  6. Step 6: Final answer
    x = 891,389.64

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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.