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Finding the Fourth Proportional to 417,089.40, 625,634.10 and 372,802.65

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Solution

The fourth proportional to 417,089.40, 625,634.10 and 372,802.65 is: 559,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,089.40 : 625,634.10 = 372,802.65 : x
  2. Step 2: Convert to fraction form
    417,089.40/625,634.10 = 372,802.65/x
  3. Step 3: Cross multiply
    417,089.40x = 625,634.10 × 372,802.65
  4. Step 4: Simplify right side
    417,089.40x = 233,238,050,410.37
  5. Step 5: Solve for x
    x = 233,238,050,410.37/417,089.40
  6. Step 6: Final answer
    x = 559,203.98

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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.