Home / 638,800.81-958,865.82-470,511.16

Finding the Fourth Proportional to 638,800.81, 958,865.82 and 470,511.16

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Solution

The fourth proportional to 638,800.81, 958,865.82 and 470,511.16 is: 706,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,800.81 : 958,865.82 = 470,511.16 : x
  2. Step 2: Convert to fraction form
    638,800.81/958,865.82 = 470,511.16/x
  3. Step 3: Cross multiply
    638,800.81x = 958,865.82 × 470,511.16
  4. Step 4: Simplify right side
    638,800.81x = 451,157,069,252.55
  5. Step 5: Solve for x
    x = 451,157,069,252.55/638,800.81
  6. Step 6: Final answer
    x = 706,256.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.