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Finding the Fourth Proportional to 617,041.26, 851,514.48 and 345,108.06

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Solution

The fourth proportional to 617,041.26, 851,514.48 and 345,108.06 is: 476,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,041.26 : 851,514.48 = 345,108.06 : x
  2. Step 2: Convert to fraction form
    617,041.26/851,514.48 = 345,108.06/x
  3. Step 3: Cross multiply
    617,041.26x = 851,514.48 × 345,108.06
  4. Step 4: Simplify right side
    617,041.26x = 293,864,510,254.71
  5. Step 5: Solve for x
    x = 293,864,510,254.71/617,041.26
  6. Step 6: Final answer
    x = 476,247.75

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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.