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Finding the Fourth Proportional to 560,385.58, 773,331.34 and 305,736.77

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Solution

The fourth proportional to 560,385.58, 773,331.34 and 305,736.77 is: 421,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,385.58 : 773,331.34 = 305,736.77 : x
  2. Step 2: Convert to fraction form
    560,385.58/773,331.34 = 305,736.77/x
  3. Step 3: Cross multiply
    560,385.58x = 773,331.34 × 305,736.77
  4. Step 4: Simplify right side
    560,385.58x = 236,435,826,031.37
  5. Step 5: Solve for x
    x = 236,435,826,031.37/560,385.58
  6. Step 6: Final answer
    x = 421,916.33

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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.