Home / 709,786.77-979,591.71-403,937.55

Finding the Fourth Proportional to 709,786.77, 979,591.71 and 403,937.55

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Solution

The fourth proportional to 709,786.77, 979,591.71 and 403,937.55 is: 557,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,786.77 : 979,591.71 = 403,937.55 : x
  2. Step 2: Convert to fraction form
    709,786.77/979,591.71 = 403,937.55/x
  3. Step 3: Cross multiply
    709,786.77x = 979,591.71 × 403,937.55
  4. Step 4: Simplify right side
    709,786.77x = 395,693,875,337.71
  5. Step 5: Solve for x
    x = 395,693,875,337.71/709,786.77
  6. Step 6: Final answer
    x = 557,482.74

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1.5x scale

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.