Home / 817,927.20-1,128,766.44-450,443.52

Finding the Fourth Proportional to 817,927.20, 1,128,766.44 and 450,443.52

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Solution

The fourth proportional to 817,927.20, 1,128,766.44 and 450,443.52 is: 621,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,927.20 : 1,128,766.44 = 450,443.52 : x
  2. Step 2: Convert to fraction form
    817,927.20/1,128,766.44 = 450,443.52/x
  3. Step 3: Cross multiply
    817,927.20x = 1,128,766.44 × 450,443.52
  4. Step 4: Simplify right side
    817,927.20x = 508,445,528,491.47
  5. Step 5: Solve for x
    x = 508,445,528,491.47/817,927.20
  6. Step 6: Final answer
    x = 621,626.87

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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.