Home / 449,187.39-619,869.12-245,228.45

Finding the Fourth Proportional to 449,187.39, 619,869.12 and 245,228.45

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Solution

The fourth proportional to 449,187.39, 619,869.12 and 245,228.45 is: 338,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,187.39 : 619,869.12 = 245,228.45 : x
  2. Step 2: Convert to fraction form
    449,187.39/619,869.12 = 245,228.45/x
  3. Step 3: Cross multiply
    449,187.39x = 619,869.12 × 245,228.45
  4. Step 4: Simplify right side
    449,187.39x = 152,009,544,347.69
  5. Step 5: Solve for x
    x = 152,009,544,347.69/449,187.39
  6. Step 6: Final answer
    x = 338,410.09

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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.