Home / 638,768.30-881,277.64-409,452.00

Finding the Fourth Proportional to 638,768.30, 881,277.64 and 409,452.00

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Solution

The fourth proportional to 638,768.30, 881,277.64 and 409,452.00 is: 564,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,768.30 : 881,277.64 = 409,452.00 : x
  2. Step 2: Convert to fraction form
    638,768.30/881,277.64 = 409,452.00/x
  3. Step 3: Cross multiply
    638,768.30x = 881,277.64 × 409,452.00
  4. Step 4: Simplify right side
    638,768.30x = 360,840,887,924.86
  5. Step 5: Solve for x
    x = 360,840,887,924.86/638,768.30
  6. Step 6: Final answer
    x = 564,901.06

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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.