Home / 641,533.18-885,381.69-369,611.32

Finding the Fourth Proportional to 641,533.18, 885,381.69 and 369,611.32

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Solution

The fourth proportional to 641,533.18, 885,381.69 and 369,611.32 is: 510,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,533.18 : 885,381.69 = 369,611.32 : x
  2. Step 2: Convert to fraction form
    641,533.18/885,381.69 = 369,611.32/x
  3. Step 3: Cross multiply
    641,533.18x = 885,381.69 × 369,611.32
  4. Step 4: Simplify right side
    641,533.18x = 327,247,095,144.73
  5. Step 5: Solve for x
    x = 327,247,095,144.73/641,533.18
  6. Step 6: Final answer
    x = 510,101.59

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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.