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Finding the Fourth Proportional to 528,051.85, 792,078.99 and 370,981.51

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Solution

The fourth proportional to 528,051.85, 792,078.99 and 370,981.51 is: 556,473.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,051.85 : 792,078.99 = 370,981.51 : x
  2. Step 2: Convert to fraction form
    528,051.85/792,078.99 = 370,981.51/x
  3. Step 3: Cross multiply
    528,051.85x = 792,078.99 × 370,981.51
  4. Step 4: Simplify right side
    528,051.85x = 293,846,659,749.48
  5. Step 5: Solve for x
    x = 293,846,659,749.48/528,051.85
  6. Step 6: Final answer
    x = 556,473.12

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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.