Home / 1,278,740.28-1,918,470.06-559,145.19

Finding the Fourth Proportional to 1,278,740.28, 1,918,470.06 and 559,145.19

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Solution

The fourth proportional to 1,278,740.28, 1,918,470.06 and 559,145.19 is: 838,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,740.28 : 1,918,470.06 = 559,145.19 : x
  2. Step 2: Convert to fraction form
    1,278,740.28/1,918,470.06 = 559,145.19/x
  3. Step 3: Cross multiply
    1,278,740.28x = 1,918,470.06 × 559,145.19
  4. Step 4: Simplify right side
    1,278,740.28x = 1,072,703,306,208.01
  5. Step 5: Solve for x
    x = 1,072,703,306,208.01/1,278,740.28
  6. Step 6: Final answer
    x = 838,875.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.