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Finding the Fourth Proportional to 370,842.40, 556,263.60 and 121,524.40

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Solution

The fourth proportional to 370,842.40, 556,263.60 and 121,524.40 is: 182,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,842.40 : 556,263.60 = 121,524.40 : x
  2. Step 2: Convert to fraction form
    370,842.40/556,263.60 = 121,524.40/x
  3. Step 3: Cross multiply
    370,842.40x = 556,263.60 × 121,524.40
  4. Step 4: Simplify right side
    370,842.40x = 67,599,600,231.84
  5. Step 5: Solve for x
    x = 67,599,600,231.84/370,842.40
  6. Step 6: Final answer
    x = 182,286.60

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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.