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Finding the Fourth Proportional to 863,265.60, 1,294,898.40 and 785,851.20

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Solution

The fourth proportional to 863,265.60, 1,294,898.40 and 785,851.20 is: 1,178,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,265.60 : 1,294,898.40 = 785,851.20 : x
  2. Step 2: Convert to fraction form
    863,265.60/1,294,898.40 = 785,851.20/x
  3. Step 3: Cross multiply
    863,265.60x = 1,294,898.40 × 785,851.20
  4. Step 4: Simplify right side
    863,265.60x = 1,017,597,461,518.08
  5. Step 5: Solve for x
    x = 1,017,597,461,518.08/863,265.60
  6. Step 6: Final answer
    x = 1,178,776.80

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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.