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Finding the Fourth Proportional to 404,351.99, 558,004.13 and 223,075.20

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Solution

The fourth proportional to 404,351.99, 558,004.13 and 223,075.20 is: 307,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,351.99 : 558,004.13 = 223,075.20 : x
  2. Step 2: Convert to fraction form
    404,351.99/558,004.13 = 223,075.20/x
  3. Step 3: Cross multiply
    404,351.99x = 558,004.13 × 223,075.20
  4. Step 4: Simplify right side
    404,351.99x = 124,476,881,785.20
  5. Step 5: Solve for x
    x = 124,476,881,785.20/404,351.99
  6. Step 6: Final answer
    x = 307,842.89

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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.