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Finding the Fourth Proportional to 459,078.60, 633,424.66 and 277,785.96

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Solution

The fourth proportional to 459,078.60, 633,424.66 and 277,785.96 is: 383,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,078.60 : 633,424.66 = 277,785.96 : x
  2. Step 2: Convert to fraction form
    459,078.60/633,424.66 = 277,785.96/x
  3. Step 3: Cross multiply
    459,078.60x = 633,424.66 × 277,785.96
  4. Step 4: Simplify right side
    459,078.60x = 175,956,477,265.77
  5. Step 5: Solve for x
    x = 175,956,477,265.77/459,078.60
  6. Step 6: Final answer
    x = 383,281.81

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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.