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Finding the Fourth Proportional to 635,702,810.96, 877,342,530.14 and 353,473,391.56

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Solution

The fourth proportional to 635,702,810.96, 877,342,530.14 and 353,473,391.56 is: 487,833,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,702,810.96 : 877,342,530.14 = 353,473,391.56 : x
  2. Step 2: Convert to fraction form
    635,702,810.96/877,342,530.14 = 353,473,391.56/x
  3. Step 3: Cross multiply
    635,702,810.96x = 877,342,530.14 × 353,473,391.56
  4. Step 4: Simplify right side
    635,702,810.96x = 310,117,239,688,417,344
  5. Step 5: Solve for x
    x = 310,117,239,688,417,344/635,702,810.96
  6. Step 6: Final answer
    x = 487,833,676.90

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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.