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Finding the Fourth Proportional to 539,701.81, 744,800.10 and 297,999.64

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Solution

The fourth proportional to 539,701.81, 744,800.10 and 297,999.64 is: 411,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,701.81 : 744,800.10 = 297,999.64 : x
  2. Step 2: Convert to fraction form
    539,701.81/744,800.10 = 297,999.64/x
  3. Step 3: Cross multiply
    539,701.81x = 744,800.10 × 297,999.64
  4. Step 4: Simplify right side
    539,701.81x = 221,950,161,671.96
  5. Step 5: Solve for x
    x = 221,950,161,671.96/539,701.81
  6. Step 6: Final answer
    x = 411,245.91

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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.