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Finding the Fourth Proportional to 487,740.12, 673,311.49 and 366,927.50

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Solution

The fourth proportional to 487,740.12, 673,311.49 and 366,927.50 is: 506,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,740.12 : 673,311.49 = 366,927.50 : x
  2. Step 2: Convert to fraction form
    487,740.12/673,311.49 = 366,927.50/x
  3. Step 3: Cross multiply
    487,740.12x = 673,311.49 × 366,927.50
  4. Step 4: Simplify right side
    487,740.12x = 247,056,501,746.98
  5. Step 5: Solve for x
    x = 247,056,501,746.98/487,740.12
  6. Step 6: Final answer
    x = 506,533.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.