Home / 656,929.40-985,423.26-257,534.60

Finding the Fourth Proportional to 656,929.40, 985,423.26 and 257,534.60

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Solution

The fourth proportional to 656,929.40, 985,423.26 and 257,534.60 is: 386,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,929.40 : 985,423.26 = 257,534.60 : x
  2. Step 2: Convert to fraction form
    656,929.40/985,423.26 = 257,534.60/x
  3. Step 3: Cross multiply
    656,929.40x = 985,423.26 × 257,534.60
  4. Step 4: Simplify right side
    656,929.40x = 253,780,585,094.80
  5. Step 5: Solve for x
    x = 253,780,585,094.80/656,929.40
  6. Step 6: Final answer
    x = 386,313.33

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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.