Home / 648,912.40-973,195.80-199,632.40

Finding the Fourth Proportional to 648,912.40, 973,195.80 and 199,632.40

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Solution

The fourth proportional to 648,912.40, 973,195.80 and 199,632.40 is: 299,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,912.40 : 973,195.80 = 199,632.40 : x
  2. Step 2: Convert to fraction form
    648,912.40/973,195.80 = 199,632.40/x
  3. Step 3: Cross multiply
    648,912.40x = 973,195.80 × 199,632.40
  4. Step 4: Simplify right side
    648,912.40x = 194,281,413,223.92
  5. Step 5: Solve for x
    x = 194,281,413,223.92/648,912.40
  6. Step 6: Final answer
    x = 299,395.44

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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.