Home / 578,995.20-796,838.40-477,619.20

Finding the Fourth Proportional to 578,995.20, 796,838.40 and 477,619.20

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Solution

The fourth proportional to 578,995.20, 796,838.40 and 477,619.20 is: 657,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,995.20 : 796,838.40 = 477,619.20 : x
  2. Step 2: Convert to fraction form
    578,995.20/796,838.40 = 477,619.20/x
  3. Step 3: Cross multiply
    578,995.20x = 796,838.40 × 477,619.20
  4. Step 4: Simplify right side
    578,995.20x = 380,585,319,137.28
  5. Step 5: Solve for x
    x = 380,585,319,137.28/578,995.20
  6. Step 6: Final answer
    x = 657,320.34

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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.