Home / 811,099.67-1,217,005.16-384,943.28

Finding the Fourth Proportional to 811,099.67, 1,217,005.16 and 384,943.28

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Solution

The fourth proportional to 811,099.67, 1,217,005.16 and 384,943.28 is: 577,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,099.67 : 1,217,005.16 = 384,943.28 : x
  2. Step 2: Convert to fraction form
    811,099.67/1,217,005.16 = 384,943.28/x
  3. Step 3: Cross multiply
    811,099.67x = 1,217,005.16 × 384,943.28
  4. Step 4: Simplify right side
    811,099.67x = 468,477,950,057.58
  5. Step 5: Solve for x
    x = 468,477,950,057.58/811,099.67
  6. Step 6: Final answer
    x = 577,583.71

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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.