Home / 805,095.40-1,207,788.90-404,728.60

Finding the Fourth Proportional to 805,095.40, 1,207,788.90 and 404,728.60

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Solution

The fourth proportional to 805,095.40, 1,207,788.90 and 404,728.60 is: 607,166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,095.40 : 1,207,788.90 = 404,728.60 : x
  2. Step 2: Convert to fraction form
    805,095.40/1,207,788.90 = 404,728.60/x
  3. Step 3: Cross multiply
    805,095.40x = 1,207,788.90 × 404,728.60
  4. Step 4: Simplify right side
    805,095.40x = 488,826,710,592.54
  5. Step 5: Solve for x
    x = 488,826,710,592.54/805,095.40
  6. Step 6: Final answer
    x = 607,166.19

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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.