Home / 666,784.02-999,165.72-441,336.78

Finding the Fourth Proportional to 666,784.02, 999,165.72 and 441,336.78

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Solution

The fourth proportional to 666,784.02, 999,165.72 and 441,336.78 is: 661,336.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,784.02 : 999,165.72 = 441,336.78 : x
  2. Step 2: Convert to fraction form
    666,784.02/999,165.72 = 441,336.78/x
  3. Step 3: Cross multiply
    666,784.02x = 999,165.72 × 441,336.78
  4. Step 4: Simplify right side
    666,784.02x = 440,968,579,053.27
  5. Step 5: Solve for x
    x = 440,968,579,053.27/666,784.02
  6. Step 6: Final answer
    x = 661,336.46

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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.