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Finding the Fourth Proportional to 531,062.44, 732,856.93 and 289,346.76

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Solution

The fourth proportional to 531,062.44, 732,856.93 and 289,346.76 is: 399,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,062.44 : 732,856.93 = 289,346.76 : x
  2. Step 2: Convert to fraction form
    531,062.44/732,856.93 = 289,346.76/x
  3. Step 3: Cross multiply
    531,062.44x = 732,856.93 × 289,346.76
  4. Step 4: Simplify right side
    531,062.44x = 212,049,777,515.68
  5. Step 5: Solve for x
    x = 212,049,777,515.68/531,062.44
  6. Step 6: Final answer
    x = 399,293.50

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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.