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Finding the Fourth Proportional to 985,606.48, 1,478,396.76 and 237,646

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Solution

The fourth proportional to 985,606.48, 1,478,396.76 and 237,646 is: 356,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,606.48 : 1,478,396.76 = 237,646 : x
  2. Step 2: Convert to fraction form
    985,606.48/1,478,396.76 = 237,646/x
  3. Step 3: Cross multiply
    985,606.48x = 1,478,396.76 × 237,646
  4. Step 4: Simplify right side
    985,606.48x = 351,335,076,426.96
  5. Step 5: Solve for x
    x = 351,335,076,426.96/985,606.48
  6. Step 6: Final answer
    x = 356,465.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.