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Finding the Fourth Proportional to 554,673.32, 832,117.86 and 213,091.86

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Solution

The fourth proportional to 554,673.32, 832,117.86 and 213,091.86 is: 319,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,673.32 : 832,117.86 = 213,091.86 : x
  2. Step 2: Convert to fraction form
    554,673.32/832,117.86 = 213,091.86/x
  3. Step 3: Cross multiply
    554,673.32x = 832,117.86 × 213,091.86
  4. Step 4: Simplify right side
    554,673.32x = 177,317,545,647.06
  5. Step 5: Solve for x
    x = 177,317,545,647.06/554,673.32
  6. Step 6: Final answer
    x = 319,679.24

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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.