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Finding the Fourth Proportional to 571,628.40, 856,859.40 and 334,849.20

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Solution

The fourth proportional to 571,628.40, 856,859.40 and 334,849.20 is: 501,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,628.40 : 856,859.40 = 334,849.20 : x
  2. Step 2: Convert to fraction form
    571,628.40/856,859.40 = 334,849.20/x
  3. Step 3: Cross multiply
    571,628.40x = 856,859.40 × 334,849.20
  4. Step 4: Simplify right side
    571,628.40x = 286,918,684,602.48
  5. Step 5: Solve for x
    x = 286,918,684,602.48/571,628.40
  6. Step 6: Final answer
    x = 501,932.17

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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.