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Finding the Fourth Proportional to 278,325.74, 417,011.44 and 186,969.93

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Solution

The fourth proportional to 278,325.74, 417,011.44 and 186,969.93 is: 280,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,325.74 : 417,011.44 = 186,969.93 : x
  2. Step 2: Convert to fraction form
    278,325.74/417,011.44 = 186,969.93/x
  3. Step 3: Cross multiply
    278,325.74x = 417,011.44 × 186,969.93
  4. Step 4: Simplify right side
    278,325.74x = 77,968,600,411.04
  5. Step 5: Solve for x
    x = 77,968,600,411.04/278,325.74
  6. Step 6: Final answer
    x = 280,134.35

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1.5x scale

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.