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Finding the Fourth Proportional to 370,228.81, 555,233.18 and 156,993.57

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Solution

The fourth proportional to 370,228.81, 555,233.18 and 156,993.57 is: 235,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,228.81 : 555,233.18 = 156,993.57 : x
  2. Step 2: Convert to fraction form
    370,228.81/555,233.18 = 156,993.57/x
  3. Step 3: Cross multiply
    370,228.81x = 555,233.18 × 156,993.57
  4. Step 4: Simplify right side
    370,228.81x = 87,168,038,325.68
  5. Step 5: Solve for x
    x = 87,168,038,325.68/370,228.81
  6. Step 6: Final answer
    x = 235,443.69

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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.