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Finding the Fourth Proportional to 530,720.01, 731,913.60 and 349,364.86

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Solution

The fourth proportional to 530,720.01, 731,913.60 and 349,364.86 is: 481,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,720.01 : 731,913.60 = 349,364.86 : x
  2. Step 2: Convert to fraction form
    530,720.01/731,913.60 = 349,364.86/x
  3. Step 3: Cross multiply
    530,720.01x = 731,913.60 × 349,364.86
  4. Step 4: Simplify right side
    530,720.01x = 255,704,891,876.43
  5. Step 5: Solve for x
    x = 255,704,891,876.43/530,720.01
  6. Step 6: Final answer
    x = 481,807.52

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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.