Home / 656,637.10-984,955.65-257,145.10

Finding the Fourth Proportional to 656,637.10, 984,955.65 and 257,145.10

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Solution

The fourth proportional to 656,637.10, 984,955.65 and 257,145.10 is: 385,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,637.10 : 984,955.65 = 257,145.10 : x
  2. Step 2: Convert to fraction form
    656,637.10/984,955.65 = 257,145.10/x
  3. Step 3: Cross multiply
    656,637.10x = 984,955.65 × 257,145.10
  4. Step 4: Simplify right side
    656,637.10x = 253,276,519,114.82
  5. Step 5: Solve for x
    x = 253,276,519,114.82/656,637.10
  6. Step 6: Final answer
    x = 385,717.65

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Similar ratio
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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.