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Finding the Fourth Proportional to 474,279.88, 654,492.36 and 259,415.34

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Solution

The fourth proportional to 474,279.88, 654,492.36 and 259,415.34 is: 357,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,279.88 : 654,492.36 = 259,415.34 : x
  2. Step 2: Convert to fraction form
    474,279.88/654,492.36 = 259,415.34/x
  3. Step 3: Cross multiply
    474,279.88x = 654,492.36 × 259,415.34
  4. Step 4: Simplify right side
    474,279.88x = 169,785,358,096.80
  5. Step 5: Solve for x
    x = 169,785,358,096.80/474,279.88
  6. Step 6: Final answer
    x = 357,985.58

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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.