Home / 1,126,571.28-1,554,813-643,025.58

Finding the Fourth Proportional to 1,126,571.28, 1,554,813 and 643,025.58

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Solution

The fourth proportional to 1,126,571.28, 1,554,813 and 643,025.58 is: 887,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,571.28 : 1,554,813 = 643,025.58 : x
  2. Step 2: Convert to fraction form
    1,126,571.28/1,554,813 = 643,025.58/x
  3. Step 3: Cross multiply
    1,126,571.28x = 1,554,813 × 643,025.58
  4. Step 4: Simplify right side
    1,126,571.28x = 999,784,531,116.54
  5. Step 5: Solve for x
    x = 999,784,531,116.54/1,126,571.28
  6. Step 6: Final answer
    x = 887,457.85

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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.