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Finding the Fourth Proportional to 316,490.04, 436,754.70 and 173,247.48

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Solution

The fourth proportional to 316,490.04, 436,754.70 and 173,247.48 is: 239,080.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,490.04 : 436,754.70 = 173,247.48 : x
  2. Step 2: Convert to fraction form
    316,490.04/436,754.70 = 173,247.48/x
  3. Step 3: Cross multiply
    316,490.04x = 436,754.70 × 173,247.48
  4. Step 4: Simplify right side
    316,490.04x = 75,666,651,153.16
  5. Step 5: Solve for x
    x = 75,666,651,153.16/316,490.04
  6. Step 6: Final answer
    x = 239,080.67

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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.