Home / 817,095.09-1,225,839.47-256,129.59

Finding the Fourth Proportional to 817,095.09, 1,225,839.47 and 256,129.59

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Solution

The fourth proportional to 817,095.09, 1,225,839.47 and 256,129.59 is: 384,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,095.09 : 1,225,839.47 = 256,129.59 : x
  2. Step 2: Convert to fraction form
    817,095.09/1,225,839.47 = 256,129.59/x
  3. Step 3: Cross multiply
    817,095.09x = 1,225,839.47 × 256,129.59
  4. Step 4: Simplify right side
    817,095.09x = 313,973,765,613.90
  5. Step 5: Solve for x
    x = 313,973,765,613.90/817,095.09
  6. Step 6: Final answer
    x = 384,256.09

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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.