Home / 865,261.58-1,194,053.83-478,075.78

Finding the Fourth Proportional to 865,261.58, 1,194,053.83 and 478,075.78

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Solution

The fourth proportional to 865,261.58, 1,194,053.83 and 478,075.78 is: 659,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,261.58 : 1,194,053.83 = 478,075.78 : x
  2. Step 2: Convert to fraction form
    865,261.58/1,194,053.83 = 478,075.78/x
  3. Step 3: Cross multiply
    865,261.58x = 1,194,053.83 × 478,075.78
  4. Step 4: Simplify right side
    865,261.58x = 570,848,216,139.24
  5. Step 5: Solve for x
    x = 570,848,216,139.24/865,261.58
  6. Step 6: Final answer
    x = 659,740.63

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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.