Home / 623,636.20-935,891.70-399,541.60

Finding the Fourth Proportional to 623,636.20, 935,891.70 and 399,541.60

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Solution

The fourth proportional to 623,636.20, 935,891.70 and 399,541.60 is: 599,592.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,636.20 : 935,891.70 = 399,541.60 : x
  2. Step 2: Convert to fraction form
    623,636.20/935,891.70 = 399,541.60/x
  3. Step 3: Cross multiply
    623,636.20x = 935,891.70 × 399,541.60
  4. Step 4: Simplify right side
    623,636.20x = 373,927,667,244.72
  5. Step 5: Solve for x
    x = 373,927,667,244.72/623,636.20
  6. Step 6: Final answer
    x = 599,592.63

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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.