Home / 927,828-1,280,405.34-540,873.18

Finding the Fourth Proportional to 927,828, 1,280,405.34 and 540,873.18

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Solution

The fourth proportional to 927,828, 1,280,405.34 and 540,873.18 is: 746,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,828 : 1,280,405.34 = 540,873.18 : x
  2. Step 2: Convert to fraction form
    927,828/1,280,405.34 = 540,873.18/x
  3. Step 3: Cross multiply
    927,828x = 1,280,405.34 × 540,873.18
  4. Step 4: Simplify right side
    927,828x = 692,536,907,934.78
  5. Step 5: Solve for x
    x = 692,536,907,934.78/927,828
  6. Step 6: Final answer
    x = 746,406.56

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1.5x scale

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.