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Finding the Fourth Proportional to 714,529.05, 986,024.57 and 404,424.98

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Solution

The fourth proportional to 714,529.05, 986,024.57 and 404,424.98 is: 558,092.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,529.05 : 986,024.57 = 404,424.98 : x
  2. Step 2: Convert to fraction form
    714,529.05/986,024.57 = 404,424.98/x
  3. Step 3: Cross multiply
    714,529.05x = 986,024.57 × 404,424.98
  4. Step 4: Simplify right side
    714,529.05x = 398,772,967,001.76
  5. Step 5: Solve for x
    x = 398,772,967,001.76/714,529.05
  6. Step 6: Final answer
    x = 558,092.03

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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.