Home / 638,359.04-957,678.72-189,115.08

Finding the Fourth Proportional to 638,359.04, 957,678.72 and 189,115.08

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Solution

The fourth proportional to 638,359.04, 957,678.72 and 189,115.08 is: 283,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,359.04 : 957,678.72 = 189,115.08 : x
  2. Step 2: Convert to fraction form
    638,359.04/957,678.72 = 189,115.08/x
  3. Step 3: Cross multiply
    638,359.04x = 957,678.72 × 189,115.08
  4. Step 4: Simplify right side
    638,359.04x = 181,111,487,747.10
  5. Step 5: Solve for x
    x = 181,111,487,747.10/638,359.04
  6. Step 6: Final answer
    x = 283,714.14

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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.