Home / 698,743.75-964,300.58-392,916.41

Finding the Fourth Proportional to 698,743.75, 964,300.58 and 392,916.41

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Solution

The fourth proportional to 698,743.75, 964,300.58 and 392,916.41 is: 542,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,743.75 : 964,300.58 = 392,916.41 : x
  2. Step 2: Convert to fraction form
    698,743.75/964,300.58 = 392,916.41/x
  3. Step 3: Cross multiply
    698,743.75x = 964,300.58 × 392,916.41
  4. Step 4: Simplify right side
    698,743.75x = 378,889,518,952.02
  5. Step 5: Solve for x
    x = 378,889,518,952.02/698,743.75
  6. Step 6: Final answer
    x = 542,243.87

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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.