Home / 545,857.20-818,785.80-190,907.10

Finding the Fourth Proportional to 545,857.20, 818,785.80 and 190,907.10

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Solution

The fourth proportional to 545,857.20, 818,785.80 and 190,907.10 is: 286,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,857.20 : 818,785.80 = 190,907.10 : x
  2. Step 2: Convert to fraction form
    545,857.20/818,785.80 = 190,907.10/x
  3. Step 3: Cross multiply
    545,857.20x = 818,785.80 × 190,907.10
  4. Step 4: Simplify right side
    545,857.20x = 156,312,022,599.18
  5. Step 5: Solve for x
    x = 156,312,022,599.18/545,857.20
  6. Step 6: Final answer
    x = 286,360.65

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Similar ratio
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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.