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Finding the Fourth Proportional to 617,337.09, 851,967.41 and 345,430.77

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Solution

The fourth proportional to 617,337.09, 851,967.41 and 345,430.77 is: 476,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,337.09 : 851,967.41 = 345,430.77 : x
  2. Step 2: Convert to fraction form
    617,337.09/851,967.41 = 345,430.77/x
  3. Step 3: Cross multiply
    617,337.09x = 851,967.41 × 345,430.77
  4. Step 4: Simplify right side
    617,337.09x = 294,295,755,054.95
  5. Step 5: Solve for x
    x = 294,295,755,054.95/617,337.09
  6. Step 6: Final answer
    x = 476,718.09

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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.