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Finding the Fourth Proportional to 535,886,410.40, 803,829,615.60 and 531,351,447.20

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Solution

The fourth proportional to 535,886,410.40, 803,829,615.60 and 531,351,447.20 is: 797,027,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,886,410.40 : 803,829,615.60 = 531,351,447.20 : x
  2. Step 2: Convert to fraction form
    535,886,410.40/803,829,615.60 = 531,351,447.20/x
  3. Step 3: Cross multiply
    535,886,410.40x = 803,829,615.60 × 531,351,447.20
  4. Step 4: Simplify right side
    535,886,410.40x = 427,116,029,551,279,680
  5. Step 5: Solve for x
    x = 427,116,029,551,279,680/535,886,410.40
  6. Step 6: Final answer
    x = 797,027,170.80

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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.