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Finding the Fourth Proportional to 573,064,098.42, 790,820,891.01 and 318,743,740.02

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Solution

The fourth proportional to 573,064,098.42, 790,820,891.01 and 318,743,740.02 is: 439,862,153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,064,098.42 : 790,820,891.01 = 318,743,740.02 : x
  2. Step 2: Convert to fraction form
    573,064,098.42/790,820,891.01 = 318,743,740.02/x
  3. Step 3: Cross multiply
    573,064,098.42x = 790,820,891.01 × 318,743,740.02
  4. Step 4: Simplify right side
    573,064,098.42x = 252,069,208,486,476,192
  5. Step 5: Solve for x
    x = 252,069,208,486,476,192/573,064,098.42
  6. Step 6: Final answer
    x = 439,862,153.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.