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Finding the Fourth Proportional to 706,431.66, 974,846.03 and 400,528.61

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Solution

The fourth proportional to 706,431.66, 974,846.03 and 400,528.61 is: 552,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,431.66 : 974,846.03 = 400,528.61 : x
  2. Step 2: Convert to fraction form
    706,431.66/974,846.03 = 400,528.61/x
  3. Step 3: Cross multiply
    706,431.66x = 974,846.03 × 400,528.61
  4. Step 4: Simplify right side
    706,431.66x = 390,453,725,359.92
  5. Step 5: Solve for x
    x = 390,453,725,359.92/706,431.66
  6. Step 6: Final answer
    x = 552,712.66

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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.