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Finding the Fourth Proportional to 526,708.66, 790,069.70 and 185,138.30

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Solution

The fourth proportional to 526,708.66, 790,069.70 and 185,138.30 is: 277,709.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,708.66 : 790,069.70 = 185,138.30 : x
  2. Step 2: Convert to fraction form
    526,708.66/790,069.70 = 185,138.30/x
  3. Step 3: Cross multiply
    526,708.66x = 790,069.70 × 185,138.30
  4. Step 4: Simplify right side
    526,708.66x = 146,272,161,139.51
  5. Step 5: Solve for x
    x = 146,272,161,139.51/526,708.66
  6. Step 6: Final answer
    x = 277,709.81

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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.