Home / 927,843.71-1,280,359.63-514,376.40

Finding the Fourth Proportional to 927,843.71, 1,280,359.63 and 514,376.40

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Solution

The fourth proportional to 927,843.71, 1,280,359.63 and 514,376.40 is: 709,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,843.71 : 1,280,359.63 = 514,376.40 : x
  2. Step 2: Convert to fraction form
    927,843.71/1,280,359.63 = 514,376.40/x
  3. Step 3: Cross multiply
    927,843.71x = 1,280,359.63 × 514,376.40
  4. Step 4: Simplify right side
    927,843.71x = 658,586,780,474.72
  5. Step 5: Solve for x
    x = 658,586,780,474.72/927,843.71
  6. Step 6: Final answer
    x = 709,803.57

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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.