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Finding the Fourth Proportional to 368,434.64, 552,661.32 and 275,530.16

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Solution

The fourth proportional to 368,434.64, 552,661.32 and 275,530.16 is: 413,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,434.64 : 552,661.32 = 275,530.16 : x
  2. Step 2: Convert to fraction form
    368,434.64/552,661.32 = 275,530.16/x
  3. Step 3: Cross multiply
    368,434.64x = 552,661.32 × 275,530.16
  4. Step 4: Simplify right side
    368,434.64x = 152,274,861,925.41
  5. Step 5: Solve for x
    x = 152,274,861,925.41/368,434.64
  6. Step 6: Final answer
    x = 413,302.24

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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.