Home / 698,764.88-964,298.76-396,975.44

Finding the Fourth Proportional to 698,764.88, 964,298.76 and 396,975.44

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Solution

The fourth proportional to 698,764.88, 964,298.76 and 396,975.44 is: 547,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,764.88 : 964,298.76 = 396,975.44 : x
  2. Step 2: Convert to fraction form
    698,764.88/964,298.76 = 396,975.44/x
  3. Step 3: Cross multiply
    698,764.88x = 964,298.76 × 396,975.44
  4. Step 4: Simplify right side
    698,764.88x = 382,802,924,542.45
  5. Step 5: Solve for x
    x = 382,802,924,542.45/698,764.88
  6. Step 6: Final answer
    x = 547,827.94

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Double scale
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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.