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Finding the Fourth Proportional to 672,313.53, 927,792.69 and 370,507.53

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Solution

The fourth proportional to 672,313.53, 927,792.69 and 370,507.53 is: 511,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,313.53 : 927,792.69 = 370,507.53 : x
  2. Step 2: Convert to fraction form
    672,313.53/927,792.69 = 370,507.53/x
  3. Step 3: Cross multiply
    672,313.53x = 927,792.69 × 370,507.53
  4. Step 4: Simplify right side
    672,313.53x = 343,754,177,923.96
  5. Step 5: Solve for x
    x = 343,754,177,923.96/672,313.53
  6. Step 6: Final answer
    x = 511,300.40

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Double scale
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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.