Home / 354,669.40-532,004.10-221,699.80

Finding the Fourth Proportional to 354,669.40, 532,004.10 and 221,699.80

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Solution

The fourth proportional to 354,669.40, 532,004.10 and 221,699.80 is: 332,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,669.40 : 532,004.10 = 221,699.80 : x
  2. Step 2: Convert to fraction form
    354,669.40/532,004.10 = 221,699.80/x
  3. Step 3: Cross multiply
    354,669.40x = 532,004.10 × 221,699.80
  4. Step 4: Simplify right side
    354,669.40x = 117,945,202,569.18
  5. Step 5: Solve for x
    x = 117,945,202,569.18/354,669.40
  6. Step 6: Final answer
    x = 332,549.70

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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.