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Finding the Fourth Proportional to 651,843,844.47, 901,913,206.55 and 568,386,004.77

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Solution

The fourth proportional to 651,843,844.47, 901,913,206.55 and 568,386,004.77 is: 786,438,114.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,843,844.47 : 901,913,206.55 = 568,386,004.77 : x
  2. Step 2: Convert to fraction form
    651,843,844.47/901,913,206.55 = 568,386,004.77/x
  3. Step 3: Cross multiply
    651,843,844.47x = 901,913,206.55 × 568,386,004.77
  4. Step 4: Simplify right side
    651,843,844.47x = 512,634,844,117,412,352
  5. Step 5: Solve for x
    x = 512,634,844,117,412,352/651,843,844.47
  6. Step 6: Final answer
    x = 786,438,114.69

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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.