Home / 778,616.84-1,074,458.58-439,116.68

Finding the Fourth Proportional to 778,616.84, 1,074,458.58 and 439,116.68

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Solution

The fourth proportional to 778,616.84, 1,074,458.58 and 439,116.68 is: 605,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,616.84 : 1,074,458.58 = 439,116.68 : x
  2. Step 2: Convert to fraction form
    778,616.84/1,074,458.58 = 439,116.68/x
  3. Step 3: Cross multiply
    778,616.84x = 1,074,458.58 × 439,116.68
  4. Step 4: Simplify right side
    778,616.84x = 471,812,684,447.11
  5. Step 5: Solve for x
    x = 471,812,684,447.11/778,616.84
  6. Step 6: Final answer
    x = 605,962.60

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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.