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Finding the Fourth Proportional to 329,752.50, 455,058.48 and 186,509.46

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Solution

The fourth proportional to 329,752.50, 455,058.48 and 186,509.46 is: 257,383.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,752.50 : 455,058.48 = 186,509.46 : x
  2. Step 2: Convert to fraction form
    329,752.50/455,058.48 = 186,509.46/x
  3. Step 3: Cross multiply
    329,752.50x = 455,058.48 × 186,509.46
  4. Step 4: Simplify right side
    329,752.50x = 84,872,711,373.22
  5. Step 5: Solve for x
    x = 84,872,711,373.22/329,752.50
  6. Step 6: Final answer
    x = 257,383.07

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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.