Home / 629,730.64-868,536.72-403,397.20

Finding the Fourth Proportional to 629,730.64, 868,536.72 and 403,397.20

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Solution

The fourth proportional to 629,730.64, 868,536.72 and 403,397.20 is: 556,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,730.64 : 868,536.72 = 403,397.20 : x
  2. Step 2: Convert to fraction form
    629,730.64/868,536.72 = 403,397.20/x
  3. Step 3: Cross multiply
    629,730.64x = 868,536.72 × 403,397.20
  4. Step 4: Simplify right side
    629,730.64x = 350,365,280,945.18
  5. Step 5: Solve for x
    x = 350,365,280,945.18/629,730.64
  6. Step 6: Final answer
    x = 556,373.25

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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.