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Finding the Fourth Proportional to 570,834.10, 855,088.53 and 270,404.02

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Solution

The fourth proportional to 570,834.10, 855,088.53 and 270,404.02 is: 405,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,834.10 : 855,088.53 = 270,404.02 : x
  2. Step 2: Convert to fraction form
    570,834.10/855,088.53 = 270,404.02/x
  3. Step 3: Cross multiply
    570,834.10x = 855,088.53 × 270,404.02
  4. Step 4: Simplify right side
    570,834.10x = 231,219,375,967.89
  5. Step 5: Solve for x
    x = 231,219,375,967.89/570,834.10
  6. Step 6: Final answer
    x = 405,055.30

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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.