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Finding the Fourth Proportional to 620,555.95, 930,887.45 and 171,276.82

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Solution

The fourth proportional to 620,555.95, 930,887.45 and 171,276.82 is: 256,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,555.95 : 930,887.45 = 171,276.82 : x
  2. Step 2: Convert to fraction form
    620,555.95/930,887.45 = 171,276.82/x
  3. Step 3: Cross multiply
    620,555.95x = 930,887.45 × 171,276.82
  4. Step 4: Simplify right side
    620,555.95x = 159,439,436,703.09
  5. Step 5: Solve for x
    x = 159,439,436,703.09/620,555.95
  6. Step 6: Final answer
    x = 256,930.00

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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.