Home / 418,100.06-577,217.40-275,275.28

Finding the Fourth Proportional to 418,100.06, 577,217.40 and 275,275.28

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Solution

The fourth proportional to 418,100.06, 577,217.40 and 275,275.28 is: 380,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,100.06 : 577,217.40 = 275,275.28 : x
  2. Step 2: Convert to fraction form
    418,100.06/577,217.40 = 275,275.28/x
  3. Step 3: Cross multiply
    418,100.06x = 577,217.40 × 275,275.28
  4. Step 4: Simplify right side
    418,100.06x = 158,893,681,405.87
  5. Step 5: Solve for x
    x = 158,893,681,405.87/418,100.06
  6. Step 6: Final answer
    x = 380,037.45

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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.