Home / 621,355.28-931,900.08-200,518.16

Finding the Fourth Proportional to 621,355.28, 931,900.08 and 200,518.16

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Solution

The fourth proportional to 621,355.28, 931,900.08 and 200,518.16 is: 300,734.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,355.28 : 931,900.08 = 200,518.16 : x
  2. Step 2: Convert to fraction form
    621,355.28/931,900.08 = 200,518.16/x
  3. Step 3: Cross multiply
    621,355.28x = 931,900.08 × 200,518.16
  4. Step 4: Simplify right side
    621,355.28x = 186,862,889,345.45
  5. Step 5: Solve for x
    x = 186,862,889,345.45/621,355.28
  6. Step 6: Final answer
    x = 300,734.37

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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.