Home / 811,658.10-1,217,487.15-368,426.10

Finding the Fourth Proportional to 811,658.10, 1,217,487.15 and 368,426.10

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Solution

The fourth proportional to 811,658.10, 1,217,487.15 and 368,426.10 is: 552,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,658.10 : 1,217,487.15 = 368,426.10 : x
  2. Step 2: Convert to fraction form
    811,658.10/1,217,487.15 = 368,426.10/x
  3. Step 3: Cross multiply
    811,658.10x = 1,217,487.15 × 368,426.10
  4. Step 4: Simplify right side
    811,658.10x = 448,554,042,474.62
  5. Step 5: Solve for x
    x = 448,554,042,474.62/811,658.10
  6. Step 6: Final answer
    x = 552,639.15

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Half scale
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Double scale
Find fourth proportional to 811,659.10, 1,217,488.65 and 368,427.10
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.