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Finding the Fourth Proportional to 265,799,593.60, 398,699,390.40 and 197,775,145.60

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Solution

The fourth proportional to 265,799,593.60, 398,699,390.40 and 197,775,145.60 is: 296,662,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,799,593.60 : 398,699,390.40 = 197,775,145.60 : x
  2. Step 2: Convert to fraction form
    265,799,593.60/398,699,390.40 = 197,775,145.60/x
  3. Step 3: Cross multiply
    265,799,593.60x = 398,699,390.40 × 197,775,145.60
  4. Step 4: Simplify right side
    265,799,593.60x = 78,852,829,986,991,232
  5. Step 5: Solve for x
    x = 78,852,829,986,991,232/265,799,593.60
  6. Step 6: Final answer
    x = 296,662,718.40

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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.