Home / 527,980.90-791,621.50-190,977.20

Finding the Fourth Proportional to 527,980.90, 791,621.50 and 190,977.20

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Solution

The fourth proportional to 527,980.90, 791,621.50 and 190,977.20 is: 286,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,980.90 : 791,621.50 = 190,977.20 : x
  2. Step 2: Convert to fraction form
    527,980.90/791,621.50 = 190,977.20/x
  3. Step 3: Cross multiply
    527,980.90x = 791,621.50 × 190,977.20
  4. Step 4: Simplify right side
    527,980.90x = 151,181,657,529.80
  5. Step 5: Solve for x
    x = 151,181,657,529.80/527,980.90
  6. Step 6: Final answer
    x = 286,339.25

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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.