Home / 626,417.80-940,145.10-289,976.20

Finding the Fourth Proportional to 626,417.80, 940,145.10 and 289,976.20

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Solution

The fourth proportional to 626,417.80, 940,145.10 and 289,976.20 is: 435,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,417.80 : 940,145.10 = 289,976.20 : x
  2. Step 2: Convert to fraction form
    626,417.80/940,145.10 = 289,976.20/x
  3. Step 3: Cross multiply
    626,417.80x = 940,145.10 × 289,976.20
  4. Step 4: Simplify right side
    626,417.80x = 272,619,703,546.62
  5. Step 5: Solve for x
    x = 272,619,703,546.62/626,417.80
  6. Step 6: Final answer
    x = 435,204.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.