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Finding the Fourth Proportional to 697,386.60, 962,361.84 and 425,411.28

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Solution

The fourth proportional to 697,386.60, 962,361.84 and 425,411.28 is: 587,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,386.60 : 962,361.84 = 425,411.28 : x
  2. Step 2: Convert to fraction form
    697,386.60/962,361.84 = 425,411.28/x
  3. Step 3: Cross multiply
    697,386.60x = 962,361.84 × 425,411.28
  4. Step 4: Simplify right side
    697,386.60x = 409,399,582,177.56
  5. Step 5: Solve for x
    x = 409,399,582,177.56/697,386.60
  6. Step 6: Final answer
    x = 587,048.25

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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.