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Finding the Fourth Proportional to 351,355.45, 484,868.30 and 190,209.32

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Solution

The fourth proportional to 351,355.45, 484,868.30 and 190,209.32 is: 262,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,355.45 : 484,868.30 = 190,209.32 : x
  2. Step 2: Convert to fraction form
    351,355.45/484,868.30 = 190,209.32/x
  3. Step 3: Cross multiply
    351,355.45x = 484,868.30 × 190,209.32
  4. Step 4: Simplify right side
    351,355.45x = 92,226,468,681.51
  5. Step 5: Solve for x
    x = 92,226,468,681.51/351,355.45
  6. Step 6: Final answer
    x = 262,487.66

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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.