Home / 439,619.60-659,429.40-410,128.40

Finding the Fourth Proportional to 439,619.60, 659,429.40 and 410,128.40

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Solution

The fourth proportional to 439,619.60, 659,429.40 and 410,128.40 is: 615,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,619.60 : 659,429.40 = 410,128.40 : x
  2. Step 2: Convert to fraction form
    439,619.60/659,429.40 = 410,128.40/x
  3. Step 3: Cross multiply
    439,619.60x = 659,429.40 × 410,128.40
  4. Step 4: Simplify right side
    439,619.60x = 270,450,724,734.96
  5. Step 5: Solve for x
    x = 270,450,724,734.96/439,619.60
  6. Step 6: Final answer
    x = 615,192.60

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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.