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Finding the Fourth Proportional to 578,894.72, 869,676.96 and 554,980.28

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Solution

The fourth proportional to 578,894.72, 869,676.96 and 554,980.28 is: 833,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,894.72 : 869,676.96 = 554,980.28 : x
  2. Step 2: Convert to fraction form
    578,894.72/869,676.96 = 554,980.28/x
  3. Step 3: Cross multiply
    578,894.72x = 869,676.96 × 554,980.28
  4. Step 4: Simplify right side
    578,894.72x = 482,653,562,770.35
  5. Step 5: Solve for x
    x = 482,653,562,770.35/578,894.72
  6. Step 6: Final answer
    x = 833,750.16

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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.