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Finding the Fourth Proportional to 542,290.35, 812,291.18 and 435,093.94

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Solution

The fourth proportional to 542,290.35, 812,291.18 and 435,093.94 is: 651,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,290.35 : 812,291.18 = 435,093.94 : x
  2. Step 2: Convert to fraction form
    542,290.35/812,291.18 = 435,093.94/x
  3. Step 3: Cross multiply
    542,290.35x = 812,291.18 × 435,093.94
  4. Step 4: Simplify right side
    542,290.35x = 353,422,969,933.45
  5. Step 5: Solve for x
    x = 353,422,969,933.45/542,290.35
  6. Step 6: Final answer
    x = 651,722.77

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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.