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Finding the Fourth Proportional to 651,693,648.07, 899,369,545.95 and 404,254,718.47

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Solution

The fourth proportional to 651,693,648.07, 899,369,545.95 and 404,254,718.47 is: 557,891,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,693,648.07 : 899,369,545.95 = 404,254,718.47 : x
  2. Step 2: Convert to fraction form
    651,693,648.07/899,369,545.95 = 404,254,718.47/x
  3. Step 3: Cross multiply
    651,693,648.07x = 899,369,545.95 × 404,254,718.47
  4. Step 4: Simplify right side
    651,693,648.07x = 363,574,382,591,990,848
  5. Step 5: Solve for x
    x = 363,574,382,591,990,848/651,693,648.07
  6. Step 6: Final answer
    x = 557,891,554.83

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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.