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Finding the Fourth Proportional to 556,648.34, 768,171.49 and 301,994.06

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Solution

The fourth proportional to 556,648.34, 768,171.49 and 301,994.06 is: 416,750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,648.34 : 768,171.49 = 301,994.06 : x
  2. Step 2: Convert to fraction form
    556,648.34/768,171.49 = 301,994.06/x
  3. Step 3: Cross multiply
    556,648.34x = 768,171.49 × 301,994.06
  4. Step 4: Simplify right side
    556,648.34x = 231,983,223,200.49
  5. Step 5: Solve for x
    x = 231,983,223,200.49/556,648.34
  6. Step 6: Final answer
    x = 416,750.05

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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.