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Finding the Fourth Proportional to 453,800.80, 627,108.72 and 340,426.72

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Solution

The fourth proportional to 453,800.80, 627,108.72 and 340,426.72 is: 470,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,800.80 : 627,108.72 = 340,426.72 : x
  2. Step 2: Convert to fraction form
    453,800.80/627,108.72 = 340,426.72/x
  3. Step 3: Cross multiply
    453,800.80x = 627,108.72 × 340,426.72
  4. Step 4: Simplify right side
    453,800.80x = 213,484,564,633.00
  5. Step 5: Solve for x
    x = 213,484,564,633.00/453,800.80
  6. Step 6: Final answer
    x = 470,436.73

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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.