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Finding the Fourth Proportional to 676,173.96, 931,237.56 and 522,646.56

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Solution

The fourth proportional to 676,173.96, 931,237.56 and 522,646.56 is: 719,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,173.96 : 931,237.56 = 522,646.56 : x
  2. Step 2: Convert to fraction form
    676,173.96/931,237.56 = 522,646.56/x
  3. Step 3: Cross multiply
    676,173.96x = 931,237.56 × 522,646.56
  4. Step 4: Simplify right side
    676,173.96x = 486,708,107,276.79
  5. Step 5: Solve for x
    x = 486,708,107,276.79/676,173.96
  6. Step 6: Final answer
    x = 719,797.18

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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.