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Finding the Fourth Proportional to 446,305.15, 615,900.40 and 245,101.15

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Solution

The fourth proportional to 446,305.15, 615,900.40 and 245,101.15 is: 338,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,305.15 : 615,900.40 = 245,101.15 : x
  2. Step 2: Convert to fraction form
    446,305.15/615,900.40 = 245,101.15/x
  3. Step 3: Cross multiply
    446,305.15x = 615,900.40 × 245,101.15
  4. Step 4: Simplify right side
    446,305.15x = 150,957,896,325.46
  5. Step 5: Solve for x
    x = 150,957,896,325.46/446,305.15
  6. Step 6: Final answer
    x = 338,239.20

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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.