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Finding the Fourth Proportional to 554,364.78, 832,014.53 and 217,641.90

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Solution

The fourth proportional to 554,364.78, 832,014.53 and 217,641.90 is: 326,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,364.78 : 832,014.53 = 217,641.90 : x
  2. Step 2: Convert to fraction form
    554,364.78/832,014.53 = 217,641.90/x
  3. Step 3: Cross multiply
    554,364.78x = 832,014.53 × 217,641.90
  4. Step 4: Simplify right side
    554,364.78x = 181,081,222,048.60
  5. Step 5: Solve for x
    x = 181,081,222,048.60/554,364.78
  6. Step 6: Final answer
    x = 326,646.33

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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.