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Finding the Fourth Proportional to 907,396.86, 1,361,029.64 and 433,955.10

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Solution

The fourth proportional to 907,396.86, 1,361,029.64 and 433,955.10 is: 650,901.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,396.86 : 1,361,029.64 = 433,955.10 : x
  2. Step 2: Convert to fraction form
    907,396.86/1,361,029.64 = 433,955.10/x
  3. Step 3: Cross multiply
    907,396.86x = 1,361,029.64 × 433,955.10
  4. Step 4: Simplify right side
    907,396.86x = 590,625,753,529.16
  5. Step 5: Solve for x
    x = 590,625,753,529.16/907,396.86
  6. Step 6: Final answer
    x = 650,901.25

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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.