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Finding the Fourth Proportional to 517,518.90, 776,015.70 and 236,795.58

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Solution

The fourth proportional to 517,518.90, 776,015.70 and 236,795.58 is: 355,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,518.90 : 776,015.70 = 236,795.58 : x
  2. Step 2: Convert to fraction form
    517,518.90/776,015.70 = 236,795.58/x
  3. Step 3: Cross multiply
    517,518.90x = 776,015.70 × 236,795.58
  4. Step 4: Simplify right side
    517,518.90x = 183,757,087,770.61
  5. Step 5: Solve for x
    x = 183,757,087,770.61/517,518.90
  6. Step 6: Final answer
    x = 355,073.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.