Home / 430,656.17-645,984.46-193,722.04

Finding the Fourth Proportional to 430,656.17, 645,984.46 and 193,722.04

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Solution

The fourth proportional to 430,656.17, 645,984.46 and 193,722.04 is: 290,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,656.17 : 645,984.46 = 193,722.04 : x
  2. Step 2: Convert to fraction form
    430,656.17/645,984.46 = 193,722.04/x
  3. Step 3: Cross multiply
    430,656.17x = 645,984.46 × 193,722.04
  4. Step 4: Simplify right side
    430,656.17x = 125,141,423,685.27
  5. Step 5: Solve for x
    x = 125,141,423,685.27/430,656.17
  6. Step 6: Final answer
    x = 290,583.14

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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.