Home / 459,543.20-689,315.04-144,024.68

Finding the Fourth Proportional to 459,543.20, 689,315.04 and 144,024.68

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Solution

The fourth proportional to 459,543.20, 689,315.04 and 144,024.68 is: 216,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,543.20 : 689,315.04 = 144,024.68 : x
  2. Step 2: Convert to fraction form
    459,543.20/689,315.04 = 144,024.68/x
  3. Step 3: Cross multiply
    459,543.20x = 689,315.04 × 144,024.68
  4. Step 4: Simplify right side
    459,543.20x = 99,278,378,055.19
  5. Step 5: Solve for x
    x = 99,278,378,055.19/459,543.20
  6. Step 6: Final answer
    x = 216,037.10

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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.