Home / 627,518.40-865,982.06-341,038.45

Finding the Fourth Proportional to 627,518.40, 865,982.06 and 341,038.45

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Solution

The fourth proportional to 627,518.40, 865,982.06 and 341,038.45 is: 470,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,518.40 : 865,982.06 = 341,038.45 : x
  2. Step 2: Convert to fraction form
    627,518.40/865,982.06 = 341,038.45/x
  3. Step 3: Cross multiply
    627,518.40x = 865,982.06 × 341,038.45
  4. Step 4: Simplify right side
    627,518.40x = 295,333,179,470.21
  5. Step 5: Solve for x
    x = 295,333,179,470.21/627,518.40
  6. Step 6: Final answer
    x = 470,636.68

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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.