Home / 646,096.16-891,460.19-543,121.85

Finding the Fourth Proportional to 646,096.16, 891,460.19 and 543,121.85

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Solution

The fourth proportional to 646,096.16, 891,460.19 and 543,121.85 is: 749,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,096.16 : 891,460.19 = 543,121.85 : x
  2. Step 2: Convert to fraction form
    646,096.16/891,460.19 = 543,121.85/x
  3. Step 3: Cross multiply
    646,096.16x = 891,460.19 × 543,121.85
  4. Step 4: Simplify right side
    646,096.16x = 484,171,500,421.24
  5. Step 5: Solve for x
    x = 484,171,500,421.24/646,096.16
  6. Step 6: Final answer
    x = 749,379.94

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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.