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Finding the Fourth Proportional to 676,275, 933,288.66 and 374,469

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Solution

The fourth proportional to 676,275, 933,288.66 and 374,469 is: 516,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,275 : 933,288.66 = 374,469 : x
  2. Step 2: Convert to fraction form
    676,275/933,288.66 = 374,469/x
  3. Step 3: Cross multiply
    676,275x = 933,288.66 × 374,469
  4. Step 4: Simplify right side
    676,275x = 349,487,671,221.54
  5. Step 5: Solve for x
    x = 349,487,671,221.54/676,275
  6. Step 6: Final answer
    x = 516,783.37

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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.