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Finding the Fourth Proportional to 584,008.60, 876,012.90 and 528,021.40

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Solution

The fourth proportional to 584,008.60, 876,012.90 and 528,021.40 is: 792,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,008.60 : 876,012.90 = 528,021.40 : x
  2. Step 2: Convert to fraction form
    584,008.60/876,012.90 = 528,021.40/x
  3. Step 3: Cross multiply
    584,008.60x = 876,012.90 × 528,021.40
  4. Step 4: Simplify right side
    584,008.60x = 462,553,557,876.06
  5. Step 5: Solve for x
    x = 462,553,557,876.06/584,008.60
  6. Step 6: Final answer
    x = 792,032.10

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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.