Home / 778,696.29-1,074,664.13-439,235.01

Finding the Fourth Proportional to 778,696.29, 1,074,664.13 and 439,235.01

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Solution

The fourth proportional to 778,696.29, 1,074,664.13 and 439,235.01 is: 606,179.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,696.29 : 1,074,664.13 = 439,235.01 : x
  2. Step 2: Convert to fraction form
    778,696.29/1,074,664.13 = 439,235.01/x
  3. Step 3: Cross multiply
    778,696.29x = 1,074,664.13 × 439,235.01
  4. Step 4: Simplify right side
    778,696.29x = 472,030,107,691.02
  5. Step 5: Solve for x
    x = 472,030,107,691.02/778,696.29
  6. Step 6: Final answer
    x = 606,179.99

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Double scale
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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.