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Finding the Fourth Proportional to 554,970.40, 832,118.50 and 217,606.86

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Solution

The fourth proportional to 554,970.40, 832,118.50 and 217,606.86 is: 326,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,970.40 : 832,118.50 = 217,606.86 : x
  2. Step 2: Convert to fraction form
    554,970.40/832,118.50 = 217,606.86/x
  3. Step 3: Cross multiply
    554,970.40x = 832,118.50 × 217,606.86
  4. Step 4: Simplify right side
    554,970.40x = 181,074,693,932.91
  5. Step 5: Solve for x
    x = 181,074,693,932.91/554,970.40
  6. Step 6: Final answer
    x = 326,278.11

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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.