Home / 805,309.90-1,208,110.65-404,943.10

Finding the Fourth Proportional to 805,309.90, 1,208,110.65 and 404,943.10

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Solution

The fourth proportional to 805,309.90, 1,208,110.65 and 404,943.10 is: 607,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,309.90 : 1,208,110.65 = 404,943.10 : x
  2. Step 2: Convert to fraction form
    805,309.90/1,208,110.65 = 404,943.10/x
  3. Step 3: Cross multiply
    805,309.90x = 1,208,110.65 × 404,943.10
  4. Step 4: Simplify right side
    805,309.90x = 489,216,071,754.02
  5. Step 5: Solve for x
    x = 489,216,071,754.02/805,309.90
  6. Step 6: Final answer
    x = 607,487.96

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1.5x scale

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.