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Finding the Fourth Proportional to 978,603.53, 1,467,425.04 and 402,122.37

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Solution

The fourth proportional to 978,603.53, 1,467,425.04 and 402,122.37 is: 602,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,603.53 : 1,467,425.04 = 402,122.37 : x
  2. Step 2: Convert to fraction form
    978,603.53/1,467,425.04 = 402,122.37/x
  3. Step 3: Cross multiply
    978,603.53x = 1,467,425.04 × 402,122.37
  4. Step 4: Simplify right side
    978,603.53x = 590,084,440,384.99
  5. Step 5: Solve for x
    x = 590,084,440,384.99/978,603.53
  6. Step 6: Final answer
    x = 602,986.22

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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.