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Finding the Fourth Proportional to 620,542.13, 930,866.79 and 171,263.07

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Solution

The fourth proportional to 620,542.13, 930,866.79 and 171,263.07 is: 256,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,542.13 : 930,866.79 = 171,263.07 : x
  2. Step 2: Convert to fraction form
    620,542.13/930,866.79 = 171,263.07/x
  3. Step 3: Cross multiply
    620,542.13x = 930,866.79 × 171,263.07
  4. Step 4: Simplify right side
    620,542.13x = 159,423,104,216.45
  5. Step 5: Solve for x
    x = 159,423,104,216.45/620,542.13
  6. Step 6: Final answer
    x = 256,909.40

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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.