Home / 438,367.27-605,084.67-257,152.45

Finding the Fourth Proportional to 438,367.27, 605,084.67 and 257,152.45

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Solution

The fourth proportional to 438,367.27, 605,084.67 and 257,152.45 is: 354,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,367.27 : 605,084.67 = 257,152.45 : x
  2. Step 2: Convert to fraction form
    438,367.27/605,084.67 = 257,152.45/x
  3. Step 3: Cross multiply
    438,367.27x = 605,084.67 × 257,152.45
  4. Step 4: Simplify right side
    438,367.27x = 155,599,005,347.94
  5. Step 5: Solve for x
    x = 155,599,005,347.94/438,367.27
  6. Step 6: Final answer
    x = 354,951.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.