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Finding the Fourth Proportional to 373,590.41, 559,663.10 and 312,898.31

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Solution

The fourth proportional to 373,590.41, 559,663.10 and 312,898.31 is: 468,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,590.41 : 559,663.10 = 312,898.31 : x
  2. Step 2: Convert to fraction form
    373,590.41/559,663.10 = 312,898.31/x
  3. Step 3: Cross multiply
    373,590.41x = 559,663.10 × 312,898.31
  4. Step 4: Simplify right side
    373,590.41x = 175,117,638,828.71
  5. Step 5: Solve for x
    x = 175,117,638,828.71/373,590.41
  6. Step 6: Final answer
    x = 468,742.33

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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.