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Finding the Fourth Proportional to 621,808.70, 932,709.60 and 537,311.93

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Solution

The fourth proportional to 621,808.70, 932,709.60 and 537,311.93 is: 805,964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,808.70 : 932,709.60 = 537,311.93 : x
  2. Step 2: Convert to fraction form
    621,808.70/932,709.60 = 537,311.93/x
  3. Step 3: Cross multiply
    621,808.70x = 932,709.60 × 537,311.93
  4. Step 4: Simplify right side
    621,808.70x = 501,155,990,641.98
  5. Step 5: Solve for x
    x = 501,155,990,641.98/621,808.70
  6. Step 6: Final answer
    x = 805,964.91

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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.