Home / 642,899.92-964,337.08-199,666.64

Finding the Fourth Proportional to 642,899.92, 964,337.08 and 199,666.64

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Solution

The fourth proportional to 642,899.92, 964,337.08 and 199,666.64 is: 299,495.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,899.92 : 964,337.08 = 199,666.64 : x
  2. Step 2: Convert to fraction form
    642,899.92/964,337.08 = 199,666.64/x
  3. Step 3: Cross multiply
    642,899.92x = 964,337.08 × 199,666.64
  4. Step 4: Simplify right side
    642,899.92x = 192,545,944,591.01
  5. Step 5: Solve for x
    x = 192,545,944,591.01/642,899.92
  6. Step 6: Final answer
    x = 299,495.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.