Home / 386,478.22-533,238.96-223,094.74

Finding the Fourth Proportional to 386,478.22, 533,238.96 and 223,094.74

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Solution

The fourth proportional to 386,478.22, 533,238.96 and 223,094.74 is: 307,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,478.22 : 533,238.96 = 223,094.74 : x
  2. Step 2: Convert to fraction form
    386,478.22/533,238.96 = 223,094.74/x
  3. Step 3: Cross multiply
    386,478.22x = 533,238.96 × 223,094.74
  4. Step 4: Simplify right side
    386,478.22x = 118,962,807,139.07
  5. Step 5: Solve for x
    x = 118,962,807,139.07/386,478.22
  6. Step 6: Final answer
    x = 307,812.45

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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.