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Finding the Fourth Proportional to 555,003.12, 832,470.12 and 341,811.60

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Solution

The fourth proportional to 555,003.12, 832,470.12 and 341,811.60 is: 512,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,003.12 : 832,470.12 = 341,811.60 : x
  2. Step 2: Convert to fraction form
    555,003.12/832,470.12 = 341,811.60/x
  3. Step 3: Cross multiply
    555,003.12x = 832,470.12 × 341,811.60
  4. Step 4: Simplify right side
    555,003.12x = 284,547,943,669.39
  5. Step 5: Solve for x
    x = 284,547,943,669.39/555,003.12
  6. Step 6: Final answer
    x = 512,696.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.