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Finding the Fourth Proportional to 672,316.45, 927,796.73 and 370,510.45

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Solution

The fourth proportional to 672,316.45, 927,796.73 and 370,510.45 is: 511,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,316.45 : 927,796.73 = 370,510.45 : x
  2. Step 2: Convert to fraction form
    672,316.45/927,796.73 = 370,510.45/x
  3. Step 3: Cross multiply
    672,316.45x = 927,796.73 × 370,510.45
  4. Step 4: Simplify right side
    672,316.45x = 343,758,384,987.64
  5. Step 5: Solve for x
    x = 343,758,384,987.64/672,316.45
  6. Step 6: Final answer
    x = 511,304.44

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Double scale
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Similar ratio
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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.