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Finding the Fourth Proportional to 424,673.50, 586,073.68 and 243,415.63

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Solution

The fourth proportional to 424,673.50, 586,073.68 and 243,415.63 is: 335,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,673.50 : 586,073.68 = 243,415.63 : x
  2. Step 2: Convert to fraction form
    424,673.50/586,073.68 = 243,415.63/x
  3. Step 3: Cross multiply
    424,673.50x = 586,073.68 × 243,415.63
  4. Step 4: Simplify right side
    424,673.50x = 142,659,494,167.67
  5. Step 5: Solve for x
    x = 142,659,494,167.67/424,673.50
  6. Step 6: Final answer
    x = 335,927.47

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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.