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Finding the Fourth Proportional to 558,247.51, 770,358.08 and 316,546.34

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Solution

The fourth proportional to 558,247.51, 770,358.08 and 316,546.34 is: 436,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,247.51 : 770,358.08 = 316,546.34 : x
  2. Step 2: Convert to fraction form
    558,247.51/770,358.08 = 316,546.34/x
  3. Step 3: Cross multiply
    558,247.51x = 770,358.08 × 316,546.34
  4. Step 4: Simplify right side
    558,247.51x = 243,854,030,713.43
  5. Step 5: Solve for x
    x = 243,854,030,713.43/558,247.51
  6. Step 6: Final answer
    x = 436,820.63

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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.