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Finding the Fourth Proportional to 676,356.75, 933,401.66 and 374,550.75

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Solution

The fourth proportional to 676,356.75, 933,401.66 and 374,550.75 is: 516,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,356.75 : 933,401.66 = 374,550.75 : x
  2. Step 2: Convert to fraction form
    676,356.75/933,401.66 = 374,550.75/x
  3. Step 3: Cross multiply
    676,356.75x = 933,401.66 × 374,550.75
  4. Step 4: Simplify right side
    676,356.75x = 349,606,289,931.49
  5. Step 5: Solve for x
    x = 349,606,289,931.49/676,356.75
  6. Step 6: Final answer
    x = 516,896.28

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Double scale
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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.