Home / 811,896.61-1,217,041.19-384,677.10

Finding the Fourth Proportional to 811,896.61, 1,217,041.19 and 384,677.10

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Solution

The fourth proportional to 811,896.61, 1,217,041.19 and 384,677.10 is: 576,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,896.61 : 1,217,041.19 = 384,677.10 : x
  2. Step 2: Convert to fraction form
    811,896.61/1,217,041.19 = 384,677.10/x
  3. Step 3: Cross multiply
    811,896.61x = 1,217,041.19 × 384,677.10
  4. Step 4: Simplify right side
    811,896.61x = 468,167,869,464.54
  5. Step 5: Solve for x
    x = 468,167,869,464.54/811,896.61
  6. Step 6: Final answer
    x = 576,634.84

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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.