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Finding the Fourth Proportional to 535,354.80, 738,790.68 and 293,639.34

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Solution

The fourth proportional to 535,354.80, 738,790.68 and 293,639.34 is: 405,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,354.80 : 738,790.68 = 293,639.34 : x
  2. Step 2: Convert to fraction form
    535,354.80/738,790.68 = 293,639.34/x
  3. Step 3: Cross multiply
    535,354.80x = 738,790.68 × 293,639.34
  4. Step 4: Simplify right side
    535,354.80x = 216,938,007,673.35
  5. Step 5: Solve for x
    x = 216,938,007,673.35/535,354.80
  6. Step 6: Final answer
    x = 405,222.87

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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.