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Finding the Fourth Proportional to 380,780.64, 569,883.56 and 370,534.01

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Solution

The fourth proportional to 380,780.64, 569,883.56 and 370,534.01 is: 554,548.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,780.64 : 569,883.56 = 370,534.01 : x
  2. Step 2: Convert to fraction form
    380,780.64/569,883.56 = 370,534.01/x
  3. Step 3: Cross multiply
    380,780.64x = 569,883.56 × 370,534.01
  4. Step 4: Simplify right side
    380,780.64x = 211,161,236,017.79
  5. Step 5: Solve for x
    x = 211,161,236,017.79/380,780.64
  6. Step 6: Final answer
    x = 554,548.25

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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.