Home / 612,018.17-917,786.78-207,098.88

Finding the Fourth Proportional to 612,018.17, 917,786.78 and 207,098.88

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Solution

The fourth proportional to 612,018.17, 917,786.78 and 207,098.88 is: 310,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,018.17 : 917,786.78 = 207,098.88 : x
  2. Step 2: Convert to fraction form
    612,018.17/917,786.78 = 207,098.88/x
  3. Step 3: Cross multiply
    612,018.17x = 917,786.78 × 207,098.88
  4. Step 4: Simplify right side
    612,018.17x = 190,072,609,933.76
  5. Step 5: Solve for x
    x = 190,072,609,933.76/612,018.17
  6. Step 6: Final answer
    x = 310,566.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.