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Finding the Fourth Proportional to 671,533.12, 926,659.20 and 384,987.52

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Solution

The fourth proportional to 671,533.12, 926,659.20 and 384,987.52 is: 531,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,533.12 : 926,659.20 = 384,987.52 : x
  2. Step 2: Convert to fraction form
    671,533.12/926,659.20 = 384,987.52/x
  3. Step 3: Cross multiply
    671,533.12x = 926,659.20 × 384,987.52
  4. Step 4: Simplify right side
    671,533.12x = 356,752,227,293.18
  5. Step 5: Solve for x
    x = 356,752,227,293.18/671,533.12
  6. Step 6: Final answer
    x = 531,250.38

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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.