Home / 816,876.18-1,127,223.81-454,300.74

Finding the Fourth Proportional to 816,876.18, 1,127,223.81 and 454,300.74

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Solution

The fourth proportional to 816,876.18, 1,127,223.81 and 454,300.74 is: 626,898.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,876.18 : 1,127,223.81 = 454,300.74 : x
  2. Step 2: Convert to fraction form
    816,876.18/1,127,223.81 = 454,300.74/x
  3. Step 3: Cross multiply
    816,876.18x = 1,127,223.81 × 454,300.74
  4. Step 4: Simplify right side
    816,876.18x = 512,098,611,028.62
  5. Step 5: Solve for x
    x = 512,098,611,028.62/816,876.18
  6. Step 6: Final answer
    x = 626,898.69

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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.