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Finding the Fourth Proportional to 533,642.88, 736,421.44 and 291,930.24

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Solution

The fourth proportional to 533,642.88, 736,421.44 and 291,930.24 is: 402,860.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,642.88 : 736,421.44 = 291,930.24 : x
  2. Step 2: Convert to fraction form
    533,642.88/736,421.44 = 291,930.24/x
  3. Step 3: Cross multiply
    533,642.88x = 736,421.44 × 291,930.24
  4. Step 4: Simplify right side
    533,642.88x = 214,983,687,720.35
  5. Step 5: Solve for x
    x = 214,983,687,720.35/533,642.88
  6. Step 6: Final answer
    x = 402,860.59

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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.