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Finding the Fourth Proportional to 573,484.88, 791,429.02 and 315,372.40

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Solution

The fourth proportional to 573,484.88, 791,429.02 and 315,372.40 is: 435,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,484.88 : 791,429.02 = 315,372.40 : x
  2. Step 2: Convert to fraction form
    573,484.88/791,429.02 = 315,372.40/x
  3. Step 3: Cross multiply
    573,484.88x = 791,429.02 × 315,372.40
  4. Step 4: Simplify right side
    573,484.88x = 249,594,869,467.05
  5. Step 5: Solve for x
    x = 249,594,869,467.05/573,484.88
  6. Step 6: Final answer
    x = 435,224.85

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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.