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Finding the Fourth Proportional to 424,240.76, 585,285.80 and 242,855.30

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Solution

The fourth proportional to 424,240.76, 585,285.80 and 242,855.30 is: 335,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,240.76 : 585,285.80 = 242,855.30 : x
  2. Step 2: Convert to fraction form
    424,240.76/585,285.80 = 242,855.30/x
  3. Step 3: Cross multiply
    424,240.76x = 585,285.80 × 242,855.30
  4. Step 4: Simplify right side
    424,240.76x = 142,139,754,404.04
  5. Step 5: Solve for x
    x = 142,139,754,404.04/424,240.76
  6. Step 6: Final answer
    x = 335,045.03

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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.