Home / 405,931.20-608,896.80-125,534.40

Finding the Fourth Proportional to 405,931.20, 608,896.80 and 125,534.40

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Solution

The fourth proportional to 405,931.20, 608,896.80 and 125,534.40 is: 188,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,931.20 : 608,896.80 = 125,534.40 : x
  2. Step 2: Convert to fraction form
    405,931.20/608,896.80 = 125,534.40/x
  3. Step 3: Cross multiply
    405,931.20x = 608,896.80 × 125,534.40
  4. Step 4: Simplify right side
    405,931.20x = 76,437,494,449.92
  5. Step 5: Solve for x
    x = 76,437,494,449.92/405,931.20
  6. Step 6: Final answer
    x = 188,301.60

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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.