Home / 783,343.65-1,081,186.26-477,356.81

Finding the Fourth Proportional to 783,343.65, 1,081,186.26 and 477,356.81

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Solution

The fourth proportional to 783,343.65, 1,081,186.26 and 477,356.81 is: 658,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,343.65 : 1,081,186.26 = 477,356.81 : x
  2. Step 2: Convert to fraction form
    783,343.65/1,081,186.26 = 477,356.81/x
  3. Step 3: Cross multiply
    783,343.65x = 1,081,186.26 × 477,356.81
  4. Step 4: Simplify right side
    783,343.65x = 516,111,624,089.43
  5. Step 5: Solve for x
    x = 516,111,624,089.43/783,343.65
  6. Step 6: Final answer
    x = 658,857.23

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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.