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Finding the Fourth Proportional to 459,609.95, 689,525.66 and 144,066.86

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Solution

The fourth proportional to 459,609.95, 689,525.66 and 144,066.86 is: 216,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,609.95 : 689,525.66 = 144,066.86 : x
  2. Step 2: Convert to fraction form
    459,609.95/689,525.66 = 144,066.86/x
  3. Step 3: Cross multiply
    459,609.95x = 689,525.66 × 144,066.86
  4. Step 4: Simplify right side
    459,609.95x = 99,337,792,557.67
  5. Step 5: Solve for x
    x = 99,337,792,557.67/459,609.95
  6. Step 6: Final answer
    x = 216,134.99

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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.