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Finding the Fourth Proportional to 633,090.38, 873,664.32 and 346,610.39

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Solution

The fourth proportional to 633,090.38, 873,664.32 and 346,610.39 is: 478,322.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,090.38 : 873,664.32 = 346,610.39 : x
  2. Step 2: Convert to fraction form
    633,090.38/873,664.32 = 346,610.39/x
  3. Step 3: Cross multiply
    633,090.38x = 873,664.32 × 346,610.39
  4. Step 4: Simplify right side
    633,090.38x = 302,821,128,500.12
  5. Step 5: Solve for x
    x = 302,821,128,500.12/633,090.38
  6. Step 6: Final answer
    x = 478,322.12

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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.