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Finding the Fourth Proportional to 706,876.61, 975,493.95 and 384,589.01

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Solution

The fourth proportional to 706,876.61, 975,493.95 and 384,589.01 is: 530,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,876.61 : 975,493.95 = 384,589.01 : x
  2. Step 2: Convert to fraction form
    706,876.61/975,493.95 = 384,589.01/x
  3. Step 3: Cross multiply
    706,876.61x = 975,493.95 × 384,589.01
  4. Step 4: Simplify right side
    706,876.61x = 375,164,247,614.02
  5. Step 5: Solve for x
    x = 375,164,247,614.02/706,876.61
  6. Step 6: Final answer
    x = 530,735.13

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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.