Home / 409,919.60-614,965.80-173,140.40

Finding the Fourth Proportional to 409,919.60, 614,965.80 and 173,140.40

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Solution

The fourth proportional to 409,919.60, 614,965.80 and 173,140.40 is: 259,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,919.60 : 614,965.80 = 173,140.40 : x
  2. Step 2: Convert to fraction form
    409,919.60/614,965.80 = 173,140.40/x
  3. Step 3: Cross multiply
    409,919.60x = 614,965.80 × 173,140.40
  4. Step 4: Simplify right side
    409,919.60x = 106,475,424,598.32
  5. Step 5: Solve for x
    x = 106,475,424,598.32/409,919.60
  6. Step 6: Final answer
    x = 259,747.09

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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.