Home / 656,165.17-905,507.85-354,359.17

Finding the Fourth Proportional to 656,165.17, 905,507.85 and 354,359.17

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Solution

The fourth proportional to 656,165.17, 905,507.85 and 354,359.17 is: 489,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,165.17 : 905,507.85 = 354,359.17 : x
  2. Step 2: Convert to fraction form
    656,165.17/905,507.85 = 354,359.17/x
  3. Step 3: Cross multiply
    656,165.17x = 905,507.85 × 354,359.17
  4. Step 4: Simplify right side
    656,165.17x = 320,875,010,154.49
  5. Step 5: Solve for x
    x = 320,875,010,154.49/656,165.17
  6. Step 6: Final answer
    x = 489,015.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.