Home / 784,639.47-1,082,798.11-440,475.30

Finding the Fourth Proportional to 784,639.47, 1,082,798.11 and 440,475.30

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Solution

The fourth proportional to 784,639.47, 1,082,798.11 and 440,475.30 is: 607,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,639.47 : 1,082,798.11 = 440,475.30 : x
  2. Step 2: Convert to fraction form
    784,639.47/1,082,798.11 = 440,475.30/x
  3. Step 3: Cross multiply
    784,639.47x = 1,082,798.11 × 440,475.30
  4. Step 4: Simplify right side
    784,639.47x = 476,945,822,341.68
  5. Step 5: Solve for x
    x = 476,945,822,341.68/784,639.47
  6. Step 6: Final answer
    x = 607,853.47

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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.