Home / 424,719.59-636,332.03-399,434.63

Finding the Fourth Proportional to 424,719.59, 636,332.03 and 399,434.63

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Solution

The fourth proportional to 424,719.59, 636,332.03 and 399,434.63 is: 598,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,719.59 : 636,332.03 = 399,434.63 : x
  2. Step 2: Convert to fraction form
    424,719.59/636,332.03 = 399,434.63/x
  3. Step 3: Cross multiply
    424,719.59x = 636,332.03 × 399,434.63
  4. Step 4: Simplify right side
    424,719.59x = 254,173,045,778.54
  5. Step 5: Solve for x
    x = 254,173,045,778.54/424,719.59
  6. Step 6: Final answer
    x = 598,449.08

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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.