Home / 352,021.20-528,031.80-293,701.20

Finding the Fourth Proportional to 352,021.20, 528,031.80 and 293,701.20

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Solution

The fourth proportional to 352,021.20, 528,031.80 and 293,701.20 is: 440,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,021.20 : 528,031.80 = 293,701.20 : x
  2. Step 2: Convert to fraction form
    352,021.20/528,031.80 = 293,701.20/x
  3. Step 3: Cross multiply
    352,021.20x = 528,031.80 × 293,701.20
  4. Step 4: Simplify right side
    352,021.20x = 155,083,573,298.16
  5. Step 5: Solve for x
    x = 155,083,573,298.16/352,021.20
  6. Step 6: Final answer
    x = 440,551.80

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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.