Home / 1,279,206.07-1,918,400.86-521,046.07

Finding the Fourth Proportional to 1,279,206.07, 1,918,400.86 and 521,046.07

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Solution

The fourth proportional to 1,279,206.07, 1,918,400.86 and 521,046.07 is: 781,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,206.07 : 1,918,400.86 = 521,046.07 : x
  2. Step 2: Convert to fraction form
    1,279,206.07/1,918,400.86 = 521,046.07/x
  3. Step 3: Cross multiply
    1,279,206.07x = 1,918,400.86 × 521,046.07
  4. Step 4: Simplify right side
    1,279,206.07x = 999,575,224,642.93
  5. Step 5: Solve for x
    x = 999,575,224,642.93/1,279,206.07
  6. Step 6: Final answer
    x = 781,402.82

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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.