Home / 753,510.38-1,039,845.23-409,346.54

Finding the Fourth Proportional to 753,510.38, 1,039,845.23 and 409,346.54

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Solution

The fourth proportional to 753,510.38, 1,039,845.23 and 409,346.54 is: 564,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,510.38 : 1,039,845.23 = 409,346.54 : x
  2. Step 2: Convert to fraction form
    753,510.38/1,039,845.23 = 409,346.54/x
  3. Step 3: Cross multiply
    753,510.38x = 1,039,845.23 × 409,346.54
  4. Step 4: Simplify right side
    753,510.38x = 425,657,039,790.05
  5. Step 5: Solve for x
    x = 425,657,039,790.05/753,510.38
  6. Step 6: Final answer
    x = 564,898.71

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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.