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Finding the Fourth Proportional to 530,767.94, 732,454.71 and 289,054.55

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Solution

The fourth proportional to 530,767.94, 732,454.71 and 289,054.55 is: 398,892.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,767.94 : 732,454.71 = 289,054.55 : x
  2. Step 2: Convert to fraction form
    530,767.94/732,454.71 = 289,054.55/x
  3. Step 3: Cross multiply
    530,767.94x = 732,454.71 × 289,054.55
  4. Step 4: Simplify right side
    530,767.94x = 211,719,366,594.43
  5. Step 5: Solve for x
    x = 211,719,366,594.43/530,767.94
  6. Step 6: Final answer
    x = 398,892.53

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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.