Home / 811,105.64-1,119,333.04-448,554.06

Finding the Fourth Proportional to 811,105.64, 1,119,333.04 and 448,554.06

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Solution

The fourth proportional to 811,105.64, 1,119,333.04 and 448,554.06 is: 619,008.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,105.64 : 1,119,333.04 = 448,554.06 : x
  2. Step 2: Convert to fraction form
    811,105.64/1,119,333.04 = 448,554.06/x
  3. Step 3: Cross multiply
    811,105.64x = 1,119,333.04 × 448,554.06
  4. Step 4: Simplify right side
    811,105.64x = 502,081,379,584.14
  5. Step 5: Solve for x
    x = 502,081,379,584.14/811,105.64
  6. Step 6: Final answer
    x = 619,008.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.