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Finding the Fourth Proportional to 370,058.84, 510,685.79 and 217,089.12

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Solution

The fourth proportional to 370,058.84, 510,685.79 and 217,089.12 is: 299,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,058.84 : 510,685.79 = 217,089.12 : x
  2. Step 2: Convert to fraction form
    370,058.84/510,685.79 = 217,089.12/x
  3. Step 3: Cross multiply
    370,058.84x = 510,685.79 × 217,089.12
  4. Step 4: Simplify right side
    370,058.84x = 110,864,327,662.16
  5. Step 5: Solve for x
    x = 110,864,327,662.16/370,058.84
  6. Step 6: Final answer
    x = 299,585.68

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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.