Home / 627,485.34-865,962.99-355,606.14

Finding the Fourth Proportional to 627,485.34, 865,962.99 and 355,606.14

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Solution

The fourth proportional to 627,485.34, 865,962.99 and 355,606.14 is: 490,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,485.34 : 865,962.99 = 355,606.14 : x
  2. Step 2: Convert to fraction form
    627,485.34/865,962.99 = 355,606.14/x
  3. Step 3: Cross multiply
    627,485.34x = 865,962.99 × 355,606.14
  4. Step 4: Simplify right side
    627,485.34x = 307,941,756,256.76
  5. Step 5: Solve for x
    x = 307,941,756,256.76/627,485.34
  6. Step 6: Final answer
    x = 490,755.30

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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.