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Finding the Fourth Proportional to 652,218.60, 978,327.90 and 604,979.40

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Solution

The fourth proportional to 652,218.60, 978,327.90 and 604,979.40 is: 907,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,218.60 : 978,327.90 = 604,979.40 : x
  2. Step 2: Convert to fraction form
    652,218.60/978,327.90 = 604,979.40/x
  3. Step 3: Cross multiply
    652,218.60x = 978,327.90 × 604,979.40
  4. Step 4: Simplify right side
    652,218.60x = 591,868,225,945.26
  5. Step 5: Solve for x
    x = 591,868,225,945.26/652,218.60
  6. Step 6: Final answer
    x = 907,469.10

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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.