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Finding the Fourth Proportional to 445,346.60, 668,019.90 and 401,023.40

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Solution

The fourth proportional to 445,346.60, 668,019.90 and 401,023.40 is: 601,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,346.60 : 668,019.90 = 401,023.40 : x
  2. Step 2: Convert to fraction form
    445,346.60/668,019.90 = 401,023.40/x
  3. Step 3: Cross multiply
    445,346.60x = 668,019.90 × 401,023.40
  4. Step 4: Simplify right side
    445,346.60x = 267,891,611,565.66
  5. Step 5: Solve for x
    x = 267,891,611,565.66/445,346.60
  6. Step 6: Final answer
    x = 601,535.10

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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.