Home / 778,566.60-1,074,420.18-439,032.48

Finding the Fourth Proportional to 778,566.60, 1,074,420.18 and 439,032.48

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Solution

The fourth proportional to 778,566.60, 1,074,420.18 and 439,032.48 is: 605,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,566.60 : 1,074,420.18 = 439,032.48 : x
  2. Step 2: Convert to fraction form
    778,566.60/1,074,420.18 = 439,032.48/x
  3. Step 3: Cross multiply
    778,566.60x = 1,074,420.18 × 439,032.48
  4. Step 4: Simplify right side
    778,566.60x = 471,705,356,187.45
  5. Step 5: Solve for x
    x = 471,705,356,187.45/778,566.60
  6. Step 6: Final answer
    x = 605,863.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.