Home / 827,725.12-1,240,548.64-353,853.60

Finding the Fourth Proportional to 827,725.12, 1,240,548.64 and 353,853.60

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Solution

The fourth proportional to 827,725.12, 1,240,548.64 and 353,853.60 is: 530,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,725.12 : 1,240,548.64 = 353,853.60 : x
  2. Step 2: Convert to fraction form
    827,725.12/1,240,548.64 = 353,853.60/x
  3. Step 3: Cross multiply
    827,725.12x = 1,240,548.64 × 353,853.60
  4. Step 4: Simplify right side
    827,725.12x = 438,972,602,239.10
  5. Step 5: Solve for x
    x = 438,972,602,239.10/827,725.12
  6. Step 6: Final answer
    x = 530,336.21

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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.