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Finding the Fourth Proportional to 406,574, 561,072.12 and 247,598

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Solution

The fourth proportional to 406,574, 561,072.12 and 247,598 is: 341,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,574 : 561,072.12 = 247,598 : x
  2. Step 2: Convert to fraction form
    406,574/561,072.12 = 247,598/x
  3. Step 3: Cross multiply
    406,574x = 561,072.12 × 247,598
  4. Step 4: Simplify right side
    406,574x = 138,920,334,767.76
  5. Step 5: Solve for x
    x = 138,920,334,767.76/406,574
  6. Step 6: Final answer
    x = 341,685.24

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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.