Home / 830,530.20-1,244,965.86-410,107.80

Finding the Fourth Proportional to 830,530.20, 1,244,965.86 and 410,107.80

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Solution

The fourth proportional to 830,530.20, 1,244,965.86 and 410,107.80 is: 614,752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,530.20 : 1,244,965.86 = 410,107.80 : x
  2. Step 2: Convert to fraction form
    830,530.20/1,244,965.86 = 410,107.80/x
  3. Step 3: Cross multiply
    830,530.20x = 1,244,965.86 × 410,107.80
  4. Step 4: Simplify right side
    830,530.20x = 510,570,209,919.71
  5. Step 5: Solve for x
    x = 510,570,209,919.71/830,530.20
  6. Step 6: Final answer
    x = 614,752.13

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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.