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Finding the Fourth Proportional to 370,338.98, 555,489.86 and 130,464.76

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Solution

The fourth proportional to 370,338.98, 555,489.86 and 130,464.76 is: 195,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,338.98 : 555,489.86 = 130,464.76 : x
  2. Step 2: Convert to fraction form
    370,338.98/555,489.86 = 130,464.76/x
  3. Step 3: Cross multiply
    370,338.98x = 555,489.86 × 130,464.76
  4. Step 4: Simplify right side
    370,338.98x = 72,471,851,267.33
  5. Step 5: Solve for x
    x = 72,471,851,267.33/370,338.98
  6. Step 6: Final answer
    x = 195,690.58

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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.