Home / 656,539.61-984,895.54-257,128.48

Finding the Fourth Proportional to 656,539.61, 984,895.54 and 257,128.48

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Solution

The fourth proportional to 656,539.61, 984,895.54 and 257,128.48 is: 385,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,539.61 : 984,895.54 = 257,128.48 : x
  2. Step 2: Convert to fraction form
    656,539.61/984,895.54 = 257,128.48/x
  3. Step 3: Cross multiply
    656,539.61x = 984,895.54 × 257,128.48
  4. Step 4: Simplify right side
    656,539.61x = 253,244,688,207.24
  5. Step 5: Solve for x
    x = 253,244,688,207.24/656,539.61
  6. Step 6: Final answer
    x = 385,726.44

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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.