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Finding the Fourth Proportional to 429,806.42, 644,975.50 and 249,976.25

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Solution

The fourth proportional to 429,806.42, 644,975.50 and 249,976.25 is: 375,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,806.42 : 644,975.50 = 249,976.25 : x
  2. Step 2: Convert to fraction form
    429,806.42/644,975.50 = 249,976.25/x
  3. Step 3: Cross multiply
    429,806.42x = 644,975.50 × 249,976.25
  4. Step 4: Simplify right side
    429,806.42x = 161,228,556,831.88
  5. Step 5: Solve for x
    x = 161,228,556,831.88/429,806.42
  6. Step 6: Final answer
    x = 375,119.01

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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.