Home / 819,303.60-1,228,953.34-220,264.71

Finding the Fourth Proportional to 819,303.60, 1,228,953.34 and 220,264.71

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Solution

The fourth proportional to 819,303.60, 1,228,953.34 and 220,264.71 is: 330,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,303.60 : 1,228,953.34 = 220,264.71 : x
  2. Step 2: Convert to fraction form
    819,303.60/1,228,953.34 = 220,264.71/x
  3. Step 3: Cross multiply
    819,303.60x = 1,228,953.34 × 220,264.71
  4. Step 4: Simplify right side
    819,303.60x = 270,695,051,038.63
  5. Step 5: Solve for x
    x = 270,695,051,038.63/819,303.60
  6. Step 6: Final answer
    x = 330,396.51

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Similar ratio
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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.