Home / 459,291.12-688,802.76-178,741.68

Finding the Fourth Proportional to 459,291.12, 688,802.76 and 178,741.68

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Solution

The fourth proportional to 459,291.12, 688,802.76 and 178,741.68 is: 268,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,291.12 : 688,802.76 = 178,741.68 : x
  2. Step 2: Convert to fraction form
    459,291.12/688,802.76 = 178,741.68/x
  3. Step 3: Cross multiply
    459,291.12x = 688,802.76 × 178,741.68
  4. Step 4: Simplify right side
    459,291.12x = 123,117,762,511.04
  5. Step 5: Solve for x
    x = 123,117,762,511.04/459,291.12
  6. Step 6: Final answer
    x = 268,060.40

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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.