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Finding the Fourth Proportional to 421,313.00, 581,337.20 and 249,238.22

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Solution

The fourth proportional to 421,313.00, 581,337.20 and 249,238.22 is: 343,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,313.00 : 581,337.20 = 249,238.22 : x
  2. Step 2: Convert to fraction form
    421,313.00/581,337.20 = 249,238.22/x
  3. Step 3: Cross multiply
    421,313.00x = 581,337.20 × 249,238.22
  4. Step 4: Simplify right side
    421,313.00x = 144,891,448,221.52
  5. Step 5: Solve for x
    x = 144,891,448,221.52/421,313.00
  6. Step 6: Final answer
    x = 343,904.53

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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.