Home / 672,897.85-1,009,401.45-199,581.84

Finding the Fourth Proportional to 672,897.85, 1,009,401.45 and 199,581.84

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Solution

The fourth proportional to 672,897.85, 1,009,401.45 and 199,581.84 is: 299,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,897.85 : 1,009,401.45 = 199,581.84 : x
  2. Step 2: Convert to fraction form
    672,897.85/1,009,401.45 = 199,581.84/x
  3. Step 3: Cross multiply
    672,897.85x = 1,009,401.45 × 199,581.84
  4. Step 4: Simplify right side
    672,897.85x = 201,458,203,223.36
  5. Step 5: Solve for x
    x = 201,458,203,223.36/672,897.85
  6. Step 6: Final answer
    x = 299,388.98

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Double scale
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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.