Home / 474,518.12-654,815.46-283,636.76

Finding the Fourth Proportional to 474,518.12, 654,815.46 and 283,636.76

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Solution

The fourth proportional to 474,518.12, 654,815.46 and 283,636.76 is: 391,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,518.12 : 654,815.46 = 283,636.76 : x
  2. Step 2: Convert to fraction form
    474,518.12/654,815.46 = 283,636.76/x
  3. Step 3: Cross multiply
    474,518.12x = 654,815.46 × 283,636.76
  4. Step 4: Simplify right side
    474,518.12x = 185,729,735,472.31
  5. Step 5: Solve for x
    x = 185,729,735,472.31/474,518.12
  6. Step 6: Final answer
    x = 391,407.05

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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.