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Finding the Fourth Proportional to 882,707.60, 1,324,061.40 and 528,813.20

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Solution

The fourth proportional to 882,707.60, 1,324,061.40 and 528,813.20 is: 793,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,707.60 : 1,324,061.40 = 528,813.20 : x
  2. Step 2: Convert to fraction form
    882,707.60/1,324,061.40 = 528,813.20/x
  3. Step 3: Cross multiply
    882,707.60x = 1,324,061.40 × 528,813.20
  4. Step 4: Simplify right side
    882,707.60x = 700,181,145,930.48
  5. Step 5: Solve for x
    x = 700,181,145,930.48/882,707.60
  6. Step 6: Final answer
    x = 793,219.80

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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.