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Finding the Fourth Proportional to 532,820.40, 801,198.90 and 446,215.20

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Solution

The fourth proportional to 532,820.40, 801,198.90 and 446,215.20 is: 670,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,820.40 : 801,198.90 = 446,215.20 : x
  2. Step 2: Convert to fraction form
    532,820.40/801,198.90 = 446,215.20/x
  3. Step 3: Cross multiply
    532,820.40x = 801,198.90 × 446,215.20
  4. Step 4: Simplify right side
    532,820.40x = 357,507,127,403.28
  5. Step 5: Solve for x
    x = 357,507,127,403.28/532,820.40
  6. Step 6: Final answer
    x = 670,971.17

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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.