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Finding the Fourth Proportional to 917,793.90, 1,376,690.85 and 598,929.30

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Solution

The fourth proportional to 917,793.90, 1,376,690.85 and 598,929.30 is: 898,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,793.90 : 1,376,690.85 = 598,929.30 : x
  2. Step 2: Convert to fraction form
    917,793.90/1,376,690.85 = 598,929.30/x
  3. Step 3: Cross multiply
    917,793.90x = 1,376,690.85 × 598,929.30
  4. Step 4: Simplify right side
    917,793.90x = 824,540,487,106.91
  5. Step 5: Solve for x
    x = 824,540,487,106.91/917,793.90
  6. Step 6: Final answer
    x = 898,393.95

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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.