Home / 1,285,761.60-1,774,455.84-712,981.44

Finding the Fourth Proportional to 1,285,761.60, 1,774,455.84 and 712,981.44

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Solution

The fourth proportional to 1,285,761.60, 1,774,455.84 and 712,981.44 is: 983,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,761.60 : 1,774,455.84 = 712,981.44 : x
  2. Step 2: Convert to fraction form
    1,285,761.60/1,774,455.84 = 712,981.44/x
  3. Step 3: Cross multiply
    1,285,761.60x = 1,774,455.84 × 712,981.44
  4. Step 4: Simplify right side
    1,285,761.60x = 1,265,154,080,019.61
  5. Step 5: Solve for x
    x = 1,265,154,080,019.61/1,285,761.60
  6. Step 6: Final answer
    x = 983,972.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.