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Finding the Fourth Proportional to 562,044.07, 775,601.60 and 320,404.53

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Solution

The fourth proportional to 562,044.07, 775,601.60 and 320,404.53 is: 442,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,044.07 : 775,601.60 = 320,404.53 : x
  2. Step 2: Convert to fraction form
    562,044.07/775,601.60 = 320,404.53/x
  3. Step 3: Cross multiply
    562,044.07x = 775,601.60 × 320,404.53
  4. Step 4: Simplify right side
    562,044.07x = 248,506,266,115.25
  5. Step 5: Solve for x
    x = 248,506,266,115.25/562,044.07
  6. Step 6: Final answer
    x = 442,147.30

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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.