Home / 816,917.71-1,127,386.37-454,333.79

Finding the Fourth Proportional to 816,917.71, 1,127,386.37 and 454,333.79

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Solution

The fourth proportional to 816,917.71, 1,127,386.37 and 454,333.79 is: 627,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,917.71 : 1,127,386.37 = 454,333.79 : x
  2. Step 2: Convert to fraction form
    816,917.71/1,127,386.37 = 454,333.79/x
  3. Step 3: Cross multiply
    816,917.71x = 1,127,386.37 × 454,333.79
  4. Step 4: Simplify right side
    816,917.71x = 512,209,718,688.27
  5. Step 5: Solve for x
    x = 512,209,718,688.27/816,917.71
  6. Step 6: Final answer
    x = 627,002.83

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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.