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Finding the Fourth Proportional to 424,902.51, 586,290.96 and 255,140.28

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Solution

The fourth proportional to 424,902.51, 586,290.96 and 255,140.28 is: 352,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,902.51 : 586,290.96 = 255,140.28 : x
  2. Step 2: Convert to fraction form
    424,902.51/586,290.96 = 255,140.28/x
  3. Step 3: Cross multiply
    424,902.51x = 586,290.96 × 255,140.28
  4. Step 4: Simplify right side
    424,902.51x = 149,586,439,695.87
  5. Step 5: Solve for x
    x = 149,586,439,695.87/424,902.51
  6. Step 6: Final answer
    x = 352,048.85

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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.