Home / 699,038.36-964,663.76-393,114.64

Finding the Fourth Proportional to 699,038.36, 964,663.76 and 393,114.64

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Solution

The fourth proportional to 699,038.36, 964,663.76 and 393,114.64 is: 542,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,038.36 : 964,663.76 = 393,114.64 : x
  2. Step 2: Convert to fraction form
    699,038.36/964,663.76 = 393,114.64/x
  3. Step 3: Cross multiply
    699,038.36x = 964,663.76 × 393,114.64
  4. Step 4: Simplify right side
    699,038.36x = 379,223,446,733.45
  5. Step 5: Solve for x
    x = 379,223,446,733.45/699,038.36
  6. Step 6: Final answer
    x = 542,493.05

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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.