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Finding the Fourth Proportional to 659,835.25, 910,572.65 and 358,029.25

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Solution

The fourth proportional to 659,835.25, 910,572.65 and 358,029.25 is: 494,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,835.25 : 910,572.65 = 358,029.25 : x
  2. Step 2: Convert to fraction form
    659,835.25/910,572.65 = 358,029.25/x
  3. Step 3: Cross multiply
    659,835.25x = 910,572.65 × 358,029.25
  4. Step 4: Simplify right side
    659,835.25x = 326,011,642,950.01
  5. Step 5: Solve for x
    x = 326,011,642,950.01/659,835.25
  6. Step 6: Final answer
    x = 494,080.37

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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.