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Finding the Fourth Proportional to 710,584.79, 980,662.91 and 404,674.11

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Solution

The fourth proportional to 710,584.79, 980,662.91 and 404,674.11 is: 558,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,584.79 : 980,662.91 = 404,674.11 : x
  2. Step 2: Convert to fraction form
    710,584.79/980,662.91 = 404,674.11/x
  3. Step 3: Cross multiply
    710,584.79x = 980,662.91 × 404,674.11
  4. Step 4: Simplify right side
    710,584.79x = 396,848,888,290.89
  5. Step 5: Solve for x
    x = 396,848,888,290.89/710,584.79
  6. Step 6: Final answer
    x = 558,482.11

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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.