Home / 781,511.96-1,078,544.55-437,382.45

Finding the Fourth Proportional to 781,511.96, 1,078,544.55 and 437,382.45

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Solution

The fourth proportional to 781,511.96, 1,078,544.55 and 437,382.45 is: 603,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,511.96 : 1,078,544.55 = 437,382.45 : x
  2. Step 2: Convert to fraction form
    781,511.96/1,078,544.55 = 437,382.45/x
  3. Step 3: Cross multiply
    781,511.96x = 1,078,544.55 × 437,382.45
  4. Step 4: Simplify right side
    781,511.96x = 471,736,457,713.15
  5. Step 5: Solve for x
    x = 471,736,457,713.15/781,511.96
  6. Step 6: Final answer
    x = 603,620.27

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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.