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Finding the Fourth Proportional to 568,472,502.80, 851,575,013.40 and 325,851,971.60

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Solution

The fourth proportional to 568,472,502.80, 851,575,013.40 and 325,851,971.60 is: 488,128,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,472,502.80 : 851,575,013.40 = 325,851,971.60 : x
  2. Step 2: Convert to fraction form
    568,472,502.80/851,575,013.40 = 325,851,971.60/x
  3. Step 3: Cross multiply
    568,472,502.80x = 851,575,013.40 × 325,851,971.60
  4. Step 4: Simplify right side
    568,472,502.80x = 277,487,397,081,686,432
  5. Step 5: Solve for x
    x = 277,487,397,081,686,432/568,472,502.80
  6. Step 6: Final answer
    x = 488,128,090.13

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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.