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Finding the Fourth Proportional to 459,544.72, 634,228.68 and 258,340.72

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Solution

The fourth proportional to 459,544.72, 634,228.68 and 258,340.72 is: 356,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,544.72 : 634,228.68 = 258,340.72 : x
  2. Step 2: Convert to fraction form
    459,544.72/634,228.68 = 258,340.72/x
  3. Step 3: Cross multiply
    459,544.72x = 634,228.68 × 258,340.72
  4. Step 4: Simplify right side
    459,544.72x = 163,847,093,835.85
  5. Step 5: Solve for x
    x = 163,847,093,835.85/459,544.72
  6. Step 6: Final answer
    x = 356,542.22

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1.5x scale

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.