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Finding the Fourth Proportional to 926,865.60, 1,300,411.20 and 926,865.60

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Solution

The fourth proportional to 926,865.60, 1,300,411.20 and 926,865.60 is: 1,300,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,865.60 : 1,300,411.20 = 926,865.60 : x
  2. Step 2: Convert to fraction form
    926,865.60/1,300,411.20 = 926,865.60/x
  3. Step 3: Cross multiply
    926,865.60x = 1,300,411.20 × 926,865.60
  4. Step 4: Simplify right side
    926,865.60x = 1,205,306,407,134.72
  5. Step 5: Solve for x
    x = 1,205,306,407,134.72/926,865.60
  6. Step 6: Final answer
    x = 1,300,411.20

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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.