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Finding the Fourth Proportional to 1,070,835.95, 1,605,737.22 and 621,669.89

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Solution

The fourth proportional to 1,070,835.95, 1,605,737.22 and 621,669.89 is: 932,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,835.95 : 1,605,737.22 = 621,669.89 : x
  2. Step 2: Convert to fraction form
    1,070,835.95/1,605,737.22 = 621,669.89/x
  3. Step 3: Cross multiply
    1,070,835.95x = 1,605,737.22 × 621,669.89
  4. Step 4: Simplify right side
    1,070,835.95x = 998,238,472,897.62
  5. Step 5: Solve for x
    x = 998,238,472,897.62/1,070,835.95
  6. Step 6: Final answer
    x = 932,204.86

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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.