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Finding the Fourth Proportional to 706,172.54, 974,497.62 and 400,277.12

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Solution

The fourth proportional to 706,172.54, 974,497.62 and 400,277.12 is: 552,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,172.54 : 974,497.62 = 400,277.12 : x
  2. Step 2: Convert to fraction form
    706,172.54/974,497.62 = 400,277.12/x
  3. Step 3: Cross multiply
    706,172.54x = 974,497.62 × 400,277.12
  4. Step 4: Simplify right side
    706,172.54x = 390,069,100,780.45
  5. Step 5: Solve for x
    x = 390,069,100,780.45/706,172.54
  6. Step 6: Final answer
    x = 552,370.81

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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.