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Finding the Fourth Proportional to 329,312.79, 454,445.74 and 186,069.76

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Solution

The fourth proportional to 329,312.79, 454,445.74 and 186,069.76 is: 256,772.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,312.79 : 454,445.74 = 186,069.76 : x
  2. Step 2: Convert to fraction form
    329,312.79/454,445.74 = 186,069.76/x
  3. Step 3: Cross multiply
    329,312.79x = 454,445.74 × 186,069.76
  4. Step 4: Simplify right side
    329,312.79x = 84,558,608,871.30
  5. Step 5: Solve for x
    x = 84,558,608,871.30/329,312.79
  6. Step 6: Final answer
    x = 256,772.93

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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.