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Finding the Fourth Proportional to 578,077,934.66, 797,745,537.84 and 313,759,926.86

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Solution

The fourth proportional to 578,077,934.66, 797,745,537.84 and 313,759,926.86 is: 432,987,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,077,934.66 : 797,745,537.84 = 313,759,926.86 : x
  2. Step 2: Convert to fraction form
    578,077,934.66/797,745,537.84 = 313,759,926.86/x
  3. Step 3: Cross multiply
    578,077,934.66x = 797,745,537.84 × 313,759,926.86
  4. Step 4: Simplify right side
    578,077,934.66x = 250,300,581,605,569,792
  5. Step 5: Solve for x
    x = 250,300,581,605,569,792/578,077,934.66
  6. Step 6: Final answer
    x = 432,987,607.03

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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.