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Finding the Fourth Proportional to 370,772.40, 556,158.60 and 121,454.40

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Solution

The fourth proportional to 370,772.40, 556,158.60 and 121,454.40 is: 182,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,772.40 : 556,158.60 = 121,454.40 : x
  2. Step 2: Convert to fraction form
    370,772.40/556,158.60 = 121,454.40/x
  3. Step 3: Cross multiply
    370,772.40x = 556,158.60 × 121,454.40
  4. Step 4: Simplify right side
    370,772.40x = 67,547,909,067.84
  5. Step 5: Solve for x
    x = 67,547,909,067.84/370,772.40
  6. Step 6: Final answer
    x = 182,181.60

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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.