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Finding the Fourth Proportional to 694,453.84, 958,373.56 and 407,971.40

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Solution

The fourth proportional to 694,453.84, 958,373.56 and 407,971.40 is: 563,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,453.84 : 958,373.56 = 407,971.40 : x
  2. Step 2: Convert to fraction form
    694,453.84/958,373.56 = 407,971.40/x
  3. Step 3: Cross multiply
    694,453.84x = 958,373.56 × 407,971.40
  4. Step 4: Simplify right side
    694,453.84x = 390,989,002,996.18
  5. Step 5: Solve for x
    x = 390,989,002,996.18/694,453.84
  6. Step 6: Final answer
    x = 563,016.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.