Home / 869,621.74-1,200,250.12-564,076.78

Finding the Fourth Proportional to 869,621.74, 1,200,250.12 and 564,076.78

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Solution

The fourth proportional to 869,621.74, 1,200,250.12 and 564,076.78 is: 778,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,621.74 : 1,200,250.12 = 564,076.78 : x
  2. Step 2: Convert to fraction form
    869,621.74/1,200,250.12 = 564,076.78/x
  3. Step 3: Cross multiply
    869,621.74x = 1,200,250.12 × 564,076.78
  4. Step 4: Simplify right side
    869,621.74x = 677,033,222,884.21
  5. Step 5: Solve for x
    x = 677,033,222,884.21/869,621.74
  6. Step 6: Final answer
    x = 778,537.60

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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.