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Finding the Fourth Proportional to 442,889.68, 611,207.12 and 249,309.89

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Solution

The fourth proportional to 442,889.68, 611,207.12 and 249,309.89 is: 344,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,889.68 : 611,207.12 = 249,309.89 : x
  2. Step 2: Convert to fraction form
    442,889.68/611,207.12 = 249,309.89/x
  3. Step 3: Cross multiply
    442,889.68x = 611,207.12 × 249,309.89
  4. Step 4: Simplify right side
    442,889.68x = 152,379,975,551.83
  5. Step 5: Solve for x
    x = 152,379,975,551.83/442,889.68
  6. Step 6: Final answer
    x = 344,058.54

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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.