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Finding the Fourth Proportional to 514,062.90, 771,124.59 and 198,521.46

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Solution

The fourth proportional to 514,062.90, 771,124.59 and 198,521.46 is: 297,793.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,062.90 : 771,124.59 = 198,521.46 : x
  2. Step 2: Convert to fraction form
    514,062.90/771,124.59 = 198,521.46/x
  3. Step 3: Cross multiply
    514,062.90x = 771,124.59 × 198,521.46
  4. Step 4: Simplify right side
    514,062.90x = 153,084,779,448.70
  5. Step 5: Solve for x
    x = 153,084,779,448.70/514,062.90
  6. Step 6: Final answer
    x = 297,793.87

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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.