Home / 811,431.52-1,217,257.99-338,006.16

Finding the Fourth Proportional to 811,431.52, 1,217,257.99 and 338,006.16

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Solution

The fourth proportional to 811,431.52, 1,217,257.99 and 338,006.16 is: 507,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,431.52 : 1,217,257.99 = 338,006.16 : x
  2. Step 2: Convert to fraction form
    811,431.52/1,217,257.99 = 338,006.16/x
  3. Step 3: Cross multiply
    811,431.52x = 1,217,257.99 × 338,006.16
  4. Step 4: Simplify right side
    811,431.52x = 411,440,698,084.20
  5. Step 5: Solve for x
    x = 411,440,698,084.20/811,431.52
  6. Step 6: Final answer
    x = 507,055.36

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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.