Home / 678,837.40-1,018,256.10-235,605.40

Finding the Fourth Proportional to 678,837.40, 1,018,256.10 and 235,605.40

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Solution

The fourth proportional to 678,837.40, 1,018,256.10 and 235,605.40 is: 353,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,837.40 : 1,018,256.10 = 235,605.40 : x
  2. Step 2: Convert to fraction form
    678,837.40/1,018,256.10 = 235,605.40/x
  3. Step 3: Cross multiply
    678,837.40x = 1,018,256.10 × 235,605.40
  4. Step 4: Simplify right side
    678,837.40x = 239,906,635,742.94
  5. Step 5: Solve for x
    x = 239,906,635,742.94/678,837.40
  6. Step 6: Final answer
    x = 353,408.10

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Similar ratio
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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.