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Finding the Fourth Proportional to 409,426.38, 613,673.70 and 249,148.82

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Solution

The fourth proportional to 409,426.38, 613,673.70 and 249,148.82 is: 373,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,426.38 : 613,673.70 = 249,148.82 : x
  2. Step 2: Convert to fraction form
    409,426.38/613,673.70 = 249,148.82/x
  3. Step 3: Cross multiply
    409,426.38x = 613,673.70 × 249,148.82
  4. Step 4: Simplify right side
    409,426.38x = 152,896,078,220.03
  5. Step 5: Solve for x
    x = 152,896,078,220.03/409,426.38
  6. Step 6: Final answer
    x = 373,439.73

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1.5x scale

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.