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Finding the Fourth Proportional to 885,221.80, 1,328,488.80 and 649,025.80

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Solution

The fourth proportional to 885,221.80, 1,328,488.80 and 649,025.80 is: 974,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,221.80 : 1,328,488.80 = 649,025.80 : x
  2. Step 2: Convert to fraction form
    885,221.80/1,328,488.80 = 649,025.80/x
  3. Step 3: Cross multiply
    885,221.80x = 1,328,488.80 × 649,025.80
  4. Step 4: Simplify right side
    885,221.80x = 862,223,506,211.04
  5. Step 5: Solve for x
    x = 862,223,506,211.04/885,221.80
  6. Step 6: Final answer
    x = 974,019.74

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.