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Finding the Fourth Proportional to 408,085.59, 562,996.65 and 235,971.93

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Solution

The fourth proportional to 408,085.59, 562,996.65 and 235,971.93 is: 325,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,085.59 : 562,996.65 = 235,971.93 : x
  2. Step 2: Convert to fraction form
    408,085.59/562,996.65 = 235,971.93/x
  3. Step 3: Cross multiply
    408,085.59x = 562,996.65 × 235,971.93
  4. Step 4: Simplify right side
    408,085.59x = 132,851,406,084.04
  5. Step 5: Solve for x
    x = 132,851,406,084.04/408,085.59
  6. Step 6: Final answer
    x = 325,547.90

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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.