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Finding the Fourth Proportional to 533,621.78, 736,415.63 and 291,898.82

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Solution

The fourth proportional to 533,621.78, 736,415.63 and 291,898.82 is: 402,829.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,621.78 : 736,415.63 = 291,898.82 : x
  2. Step 2: Convert to fraction form
    533,621.78/736,415.63 = 291,898.82/x
  3. Step 3: Cross multiply
    533,621.78x = 736,415.63 × 291,898.82
  4. Step 4: Simplify right side
    533,621.78x = 214,958,848,284.98
  5. Step 5: Solve for x
    x = 214,958,848,284.98/533,621.78
  6. Step 6: Final answer
    x = 402,829.98

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1.5x scale

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.