Home / 656,921.90-985,412.01-257,527.10

Finding the Fourth Proportional to 656,921.90, 985,412.01 and 257,527.10

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Solution

The fourth proportional to 656,921.90, 985,412.01 and 257,527.10 is: 386,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,921.90 : 985,412.01 = 257,527.10 : x
  2. Step 2: Convert to fraction form
    656,921.90/985,412.01 = 257,527.10/x
  3. Step 3: Cross multiply
    656,921.90x = 985,412.01 × 257,527.10
  4. Step 4: Simplify right side
    656,921.90x = 253,770,297,240.47
  5. Step 5: Solve for x
    x = 253,770,297,240.47/656,921.90
  6. Step 6: Final answer
    x = 386,302.08

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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.