Home / 784,025.10-1,081,888.92-439,812.90

Finding the Fourth Proportional to 784,025.10, 1,081,888.92 and 439,812.90

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Solution

The fourth proportional to 784,025.10, 1,081,888.92 and 439,812.90 is: 606,904.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,025.10 : 1,081,888.92 = 439,812.90 : x
  2. Step 2: Convert to fraction form
    784,025.10/1,081,888.92 = 439,812.90/x
  3. Step 3: Cross multiply
    784,025.10x = 1,081,888.92 × 439,812.90
  4. Step 4: Simplify right side
    784,025.10x = 475,828,703,383.07
  5. Step 5: Solve for x
    x = 475,828,703,383.07/784,025.10
  6. Step 6: Final answer
    x = 606,904.94

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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.