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Finding the Fourth Proportional to 666,973.53, 999,899.64 and 540,299.66

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Solution

The fourth proportional to 666,973.53, 999,899.64 and 540,299.66 is: 809,995.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,973.53 : 999,899.64 = 540,299.66 : x
  2. Step 2: Convert to fraction form
    666,973.53/999,899.64 = 540,299.66/x
  3. Step 3: Cross multiply
    666,973.53x = 999,899.64 × 540,299.66
  4. Step 4: Simplify right side
    666,973.53x = 540,245,430,526.62
  5. Step 5: Solve for x
    x = 540,245,430,526.62/666,973.53
  6. Step 6: Final answer
    x = 809,995.31

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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.