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Finding the Fourth Proportional to 906,782.10, 1,360,691.55 and 346,218.90

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Solution

The fourth proportional to 906,782.10, 1,360,691.55 and 346,218.90 is: 519,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,782.10 : 1,360,691.55 = 346,218.90 : x
  2. Step 2: Convert to fraction form
    906,782.10/1,360,691.55 = 346,218.90/x
  3. Step 3: Cross multiply
    906,782.10x = 1,360,691.55 × 346,218.90
  4. Step 4: Simplify right side
    906,782.10x = 471,097,131,680.30
  5. Step 5: Solve for x
    x = 471,097,131,680.30/906,782.10
  6. Step 6: Final answer
    x = 519,526.28

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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.