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Finding the Fourth Proportional to 617,876.60, 852,741.54 and 376,300.76

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Solution

The fourth proportional to 617,876.60, 852,741.54 and 376,300.76 is: 519,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,876.60 : 852,741.54 = 376,300.76 : x
  2. Step 2: Convert to fraction form
    617,876.60/852,741.54 = 376,300.76/x
  3. Step 3: Cross multiply
    617,876.60x = 852,741.54 × 376,300.76
  4. Step 4: Simplify right side
    617,876.60x = 320,887,289,585.57
  5. Step 5: Solve for x
    x = 320,887,289,585.57/617,876.60
  6. Step 6: Final answer
    x = 519,338.80

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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.