Home / 830,528.20-1,244,962.86-410,105.80

Finding the Fourth Proportional to 830,528.20, 1,244,962.86 and 410,105.80

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Solution

The fourth proportional to 830,528.20, 1,244,962.86 and 410,105.80 is: 614,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,528.20 : 1,244,962.86 = 410,105.80 : x
  2. Step 2: Convert to fraction form
    830,528.20/1,244,962.86 = 410,105.80/x
  3. Step 3: Cross multiply
    830,528.20x = 1,244,962.86 × 410,105.80
  4. Step 4: Simplify right side
    830,528.20x = 510,566,489,670.59
  5. Step 5: Solve for x
    x = 510,566,489,670.59/830,528.20
  6. Step 6: Final answer
    x = 614,749.13

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1.5x scale

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.