Home / 388,945.23-583,962.30-199,539.20

Finding the Fourth Proportional to 388,945.23, 583,962.30 and 199,539.20

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Solution

The fourth proportional to 388,945.23, 583,962.30 and 199,539.20 is: 299,588.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,945.23 : 583,962.30 = 199,539.20 : x
  2. Step 2: Convert to fraction form
    388,945.23/583,962.30 = 199,539.20/x
  3. Step 3: Cross multiply
    388,945.23x = 583,962.30 × 199,539.20
  4. Step 4: Simplify right side
    388,945.23x = 116,523,367,252.35
  5. Step 5: Solve for x
    x = 116,523,367,252.35/388,945.23
  6. Step 6: Final answer
    x = 299,588.11

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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.