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Finding the Fourth Proportional to 676,509.92, 933,550.76 and 370,588.12

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Solution

The fourth proportional to 676,509.92, 933,550.76 and 370,588.12 is: 511,393.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,509.92 : 933,550.76 = 370,588.12 : x
  2. Step 2: Convert to fraction form
    676,509.92/933,550.76 = 370,588.12/x
  3. Step 3: Cross multiply
    676,509.92x = 933,550.76 × 370,588.12
  4. Step 4: Simplify right side
    676,509.92x = 345,962,821,072.97
  5. Step 5: Solve for x
    x = 345,962,821,072.97/676,509.92
  6. Step 6: Final answer
    x = 511,393.57

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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.