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Finding the Fourth Proportional to 374,613,562.60, 561,920,343.90 and 368,873,999.80

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Solution

The fourth proportional to 374,613,562.60, 561,920,343.90 and 368,873,999.80 is: 553,310,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,613,562.60 : 561,920,343.90 = 368,873,999.80 : x
  2. Step 2: Convert to fraction form
    374,613,562.60/561,920,343.90 = 368,873,999.80/x
  3. Step 3: Cross multiply
    374,613,562.60x = 561,920,343.90 × 368,873,999.80
  4. Step 4: Simplify right side
    374,613,562.60x = 207,277,804,823,384,544
  5. Step 5: Solve for x
    x = 207,277,804,823,384,544/374,613,562.60
  6. Step 6: Final answer
    x = 553,310,999.70

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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.