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Finding the Fourth Proportional to 424,924.62, 586,438.34 and 317,307.82

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Solution

The fourth proportional to 424,924.62, 586,438.34 and 317,307.82 is: 437,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,924.62 : 586,438.34 = 317,307.82 : x
  2. Step 2: Convert to fraction form
    424,924.62/586,438.34 = 317,307.82/x
  3. Step 3: Cross multiply
    424,924.62x = 586,438.34 × 317,307.82
  4. Step 4: Simplify right side
    424,924.62x = 186,081,471,229.82
  5. Step 5: Solve for x
    x = 186,081,471,229.82/424,924.62
  6. Step 6: Final answer
    x = 437,916.43

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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.