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Finding the Fourth Proportional to 445,809.62, 615,275.31 and 249,650.81

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Solution

The fourth proportional to 445,809.62, 615,275.31 and 249,650.81 is: 344,550.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,809.62 : 615,275.31 = 249,650.81 : x
  2. Step 2: Convert to fraction form
    445,809.62/615,275.31 = 249,650.81/x
  3. Step 3: Cross multiply
    445,809.62x = 615,275.31 × 249,650.81
  4. Step 4: Simplify right side
    445,809.62x = 153,603,975,189.87
  5. Step 5: Solve for x
    x = 153,603,975,189.87/445,809.62
  6. Step 6: Final answer
    x = 344,550.61

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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.