Home / 496,553,199.24-685,138,575.36-287,696,623.80

Finding the Fourth Proportional to 496,553,199.24, 685,138,575.36 and 287,696,623.80

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Solution

The fourth proportional to 496,553,199.24, 685,138,575.36 and 287,696,623.80 is: 396,960,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,553,199.24 : 685,138,575.36 = 287,696,623.80 : x
  2. Step 2: Convert to fraction form
    496,553,199.24/685,138,575.36 = 287,696,623.80/x
  3. Step 3: Cross multiply
    496,553,199.24x = 685,138,575.36 × 287,696,623.80
  4. Step 4: Simplify right side
    496,553,199.24x = 197,112,054,966,213,888
  5. Step 5: Solve for x
    x = 197,112,054,966,213,888/496,553,199.24
  6. Step 6: Final answer
    x = 396,960,598.11

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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.