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Finding the Fourth Proportional to 528,763.05, 792,182.30 and 472,076.01

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Solution

The fourth proportional to 528,763.05, 792,182.30 and 472,076.01 is: 707,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,763.05 : 792,182.30 = 472,076.01 : x
  2. Step 2: Convert to fraction form
    528,763.05/792,182.30 = 472,076.01/x
  3. Step 3: Cross multiply
    528,763.05x = 792,182.30 × 472,076.01
  4. Step 4: Simplify right side
    528,763.05x = 373,970,257,016.24
  5. Step 5: Solve for x
    x = 373,970,257,016.24/528,763.05
  6. Step 6: Final answer
    x = 707,254.90

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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.