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Finding the Fourth Proportional to 807,032.80, 1,210,030.80 and 333,906.40

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Solution

The fourth proportional to 807,032.80, 1,210,030.80 and 333,906.40 is: 500,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,032.80 : 1,210,030.80 = 333,906.40 : x
  2. Step 2: Convert to fraction form
    807,032.80/1,210,030.80 = 333,906.40/x
  3. Step 3: Cross multiply
    807,032.80x = 1,210,030.80 × 333,906.40
  4. Step 4: Simplify right side
    807,032.80x = 404,037,028,317.12
  5. Step 5: Solve for x
    x = 404,037,028,317.12/807,032.80
  6. Step 6: Final answer
    x = 500,645.11

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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.