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Finding the Fourth Proportional to 707,172.48, 975,906 and 384,884.64

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Solution

The fourth proportional to 707,172.48, 975,906 and 384,884.64 is: 531,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,172.48 : 975,906 = 384,884.64 : x
  2. Step 2: Convert to fraction form
    707,172.48/975,906 = 384,884.64/x
  3. Step 3: Cross multiply
    707,172.48x = 975,906 × 384,884.64
  4. Step 4: Simplify right side
    707,172.48x = 375,611,229,483.84
  5. Step 5: Solve for x
    x = 375,611,229,483.84/707,172.48
  6. Step 6: Final answer
    x = 531,145.15

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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.