Home / 817,208.85-1,127,763.35-454,666.44

Finding the Fourth Proportional to 817,208.85, 1,127,763.35 and 454,666.44

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Solution

The fourth proportional to 817,208.85, 1,127,763.35 and 454,666.44 is: 627,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,208.85 : 1,127,763.35 = 454,666.44 : x
  2. Step 2: Convert to fraction form
    817,208.85/1,127,763.35 = 454,666.44/x
  3. Step 3: Cross multiply
    817,208.85x = 1,127,763.35 × 454,666.44
  4. Step 4: Simplify right side
    817,208.85x = 512,756,150,553.42
  5. Step 5: Solve for x
    x = 512,756,150,553.42/817,208.85
  6. Step 6: Final answer
    x = 627,448.11

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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.