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Finding the Fourth Proportional to 329,809.16, 455,146.62 and 186,566.42

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Solution

The fourth proportional to 329,809.16, 455,146.62 and 186,566.42 is: 257,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,809.16 : 455,146.62 = 186,566.42 : x
  2. Step 2: Convert to fraction form
    329,809.16/455,146.62 = 186,566.42/x
  3. Step 3: Cross multiply
    329,809.16x = 455,146.62 × 186,566.42
  4. Step 4: Simplify right side
    329,809.16x = 84,915,075,468.50
  5. Step 5: Solve for x
    x = 84,915,075,468.50/329,809.16
  6. Step 6: Final answer
    x = 257,467.30

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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.