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Finding the Fourth Proportional to 511,618.16, 767,959.53 and 376,834.42

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Solution

The fourth proportional to 511,618.16, 767,959.53 and 376,834.42 is: 565,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,618.16 : 767,959.53 = 376,834.42 : x
  2. Step 2: Convert to fraction form
    511,618.16/767,959.53 = 376,834.42/x
  3. Step 3: Cross multiply
    511,618.16x = 767,959.53 × 376,834.42
  4. Step 4: Simplify right side
    511,618.16x = 289,393,584,071.02
  5. Step 5: Solve for x
    x = 289,393,584,071.02/511,618.16
  6. Step 6: Final answer
    x = 565,643.69

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1.5x scale

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.