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Finding the Fourth Proportional to 635,752,492.35, 877,411,162.49 and 353,523,072.93

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Solution

The fourth proportional to 635,752,492.35, 877,411,162.49 and 353,523,072.93 is: 487,902,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,752,492.35 : 877,411,162.49 = 353,523,072.93 : x
  2. Step 2: Convert to fraction form
    635,752,492.35/877,411,162.49 = 353,523,072.93/x
  3. Step 3: Cross multiply
    635,752,492.35x = 877,411,162.49 × 353,523,072.93
  4. Step 4: Simplify right side
    635,752,492.35x = 310,185,090,384,780,736
  5. Step 5: Solve for x
    x = 310,185,090,384,780,736/635,752,492.35
  6. Step 6: Final answer
    x = 487,902,279.77

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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.