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Finding the Fourth Proportional to 526,912.72, 790,404.27 and 185,315.16

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Solution

The fourth proportional to 526,912.72, 790,404.27 and 185,315.16 is: 277,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,912.72 : 790,404.27 = 185,315.16 : x
  2. Step 2: Convert to fraction form
    526,912.72/790,404.27 = 185,315.16/x
  3. Step 3: Cross multiply
    526,912.72x = 790,404.27 × 185,315.16
  4. Step 4: Simplify right side
    526,912.72x = 146,473,889,807.71
  5. Step 5: Solve for x
    x = 146,473,889,807.71/526,912.72
  6. Step 6: Final answer
    x = 277,985.11

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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.