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Finding the Fourth Proportional to 533,630.80, 736,410.26 and 291,913.31

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Solution

The fourth proportional to 533,630.80, 736,410.26 and 291,913.31 is: 402,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,630.80 : 736,410.26 = 291,913.31 : x
  2. Step 2: Convert to fraction form
    533,630.80/736,410.26 = 291,913.31/x
  3. Step 3: Cross multiply
    533,630.80x = 736,410.26 × 291,913.31
  4. Step 4: Simplify right side
    533,630.80x = 214,967,955,054.99
  5. Step 5: Solve for x
    x = 214,967,955,054.99/533,630.80
  6. Step 6: Final answer
    x = 402,840.24

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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.