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Finding the Fourth Proportional to 913,281.60, 1,281,393.60 and 913,281.60

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Solution

The fourth proportional to 913,281.60, 1,281,393.60 and 913,281.60 is: 1,281,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,281.60 : 1,281,393.60 = 913,281.60 : x
  2. Step 2: Convert to fraction form
    913,281.60/1,281,393.60 = 913,281.60/x
  3. Step 3: Cross multiply
    913,281.60x = 1,281,393.60 × 913,281.60
  4. Step 4: Simplify right side
    913,281.60x = 1,170,273,197,237.76
  5. Step 5: Solve for x
    x = 1,170,273,197,237.76/913,281.60
  6. Step 6: Final answer
    x = 1,281,393.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.