Home / 639,733.70-961,026.15-534,757.70

Finding the Fourth Proportional to 639,733.70, 961,026.15 and 534,757.70

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Solution

The fourth proportional to 639,733.70, 961,026.15 and 534,757.70 is: 803,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,733.70 : 961,026.15 = 534,757.70 : x
  2. Step 2: Convert to fraction form
    639,733.70/961,026.15 = 534,757.70/x
  3. Step 3: Cross multiply
    639,733.70x = 961,026.15 × 534,757.70
  4. Step 4: Simplify right side
    639,733.70x = 513,916,133,613.86
  5. Step 5: Solve for x
    x = 513,916,133,613.86/639,733.70
  6. Step 6: Final answer
    x = 803,328.22

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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.