Home / 811,536.50-1,216,513.65-338,357.18

Finding the Fourth Proportional to 811,536.50, 1,216,513.65 and 338,357.18

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Solution

The fourth proportional to 811,536.50, 1,216,513.65 and 338,357.18 is: 507,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,536.50 : 1,216,513.65 = 338,357.18 : x
  2. Step 2: Convert to fraction form
    811,536.50/1,216,513.65 = 338,357.18/x
  3. Step 3: Cross multiply
    811,536.50x = 1,216,513.65 × 338,357.18
  4. Step 4: Simplify right side
    811,536.50x = 411,616,128,045.51
  5. Step 5: Solve for x
    x = 411,616,128,045.51/811,536.50
  6. Step 6: Final answer
    x = 507,205.93

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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.