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Finding the Fourth Proportional to 695,830.78, 960,246.62 and 423,898.59

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Solution

The fourth proportional to 695,830.78, 960,246.62 and 423,898.59 is: 584,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,830.78 : 960,246.62 = 423,898.59 : x
  2. Step 2: Convert to fraction form
    695,830.78/960,246.62 = 423,898.59/x
  3. Step 3: Cross multiply
    695,830.78x = 960,246.62 × 423,898.59
  4. Step 4: Simplify right side
    695,830.78x = 407,047,191,341.32
  5. Step 5: Solve for x
    x = 407,047,191,341.32/695,830.78
  6. Step 6: Final answer
    x = 584,980.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.