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Finding the Fourth Proportional to 620,554.94, 930,885.95 and 171,275.82

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Solution

The fourth proportional to 620,554.94, 930,885.95 and 171,275.82 is: 256,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,554.94 : 930,885.95 = 171,275.82 : x
  2. Step 2: Convert to fraction form
    620,554.94/930,885.95 = 171,275.82/x
  3. Step 3: Cross multiply
    620,554.94x = 930,885.95 × 171,275.82
  4. Step 4: Simplify right side
    620,554.94x = 159,438,254,412.73
  5. Step 5: Solve for x
    x = 159,438,254,412.73/620,554.94
  6. Step 6: Final answer
    x = 256,928.51

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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.