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Finding the Fourth Proportional to 424,149.86, 585,341.05 and 249,688.58

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Solution

The fourth proportional to 424,149.86, 585,341.05 and 249,688.58 is: 344,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,149.86 : 585,341.05 = 249,688.58 : x
  2. Step 2: Convert to fraction form
    424,149.86/585,341.05 = 249,688.58/x
  3. Step 3: Cross multiply
    424,149.86x = 585,341.05 × 249,688.58
  4. Step 4: Simplify right side
    424,149.86x = 146,152,975,590.21
  5. Step 5: Solve for x
    x = 146,152,975,590.21/424,149.86
  6. Step 6: Final answer
    x = 344,578.63

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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.