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Finding the Fourth Proportional to 397,347.80, 596,021.70 and 346,026.20

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Solution

The fourth proportional to 397,347.80, 596,021.70 and 346,026.20 is: 519,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,347.80 : 596,021.70 = 346,026.20 : x
  2. Step 2: Convert to fraction form
    397,347.80/596,021.70 = 346,026.20/x
  3. Step 3: Cross multiply
    397,347.80x = 596,021.70 × 346,026.20
  4. Step 4: Simplify right side
    397,347.80x = 206,239,123,968.54
  5. Step 5: Solve for x
    x = 206,239,123,968.54/397,347.80
  6. Step 6: Final answer
    x = 519,039.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.