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Finding the Fourth Proportional to 623,238.59, 860,044.29 and 351,362.90

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Solution

The fourth proportional to 623,238.59, 860,044.29 and 351,362.90 is: 484,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,238.59 : 860,044.29 = 351,362.90 : x
  2. Step 2: Convert to fraction form
    623,238.59/860,044.29 = 351,362.90/x
  3. Step 3: Cross multiply
    623,238.59x = 860,044.29 × 351,362.90
  4. Step 4: Simplify right side
    623,238.59x = 302,187,655,862.84
  5. Step 5: Solve for x
    x = 302,187,655,862.84/623,238.59
  6. Step 6: Final answer
    x = 484,866.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.