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Finding the Fourth Proportional to 634,449.74, 875,547.42 and 344,061.85

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Solution

The fourth proportional to 634,449.74, 875,547.42 and 344,061.85 is: 474,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,449.74 : 875,547.42 = 344,061.85 : x
  2. Step 2: Convert to fraction form
    634,449.74/875,547.42 = 344,061.85/x
  3. Step 3: Cross multiply
    634,449.74x = 875,547.42 × 344,061.85
  4. Step 4: Simplify right side
    634,449.74x = 301,242,463,367.62
  5. Step 5: Solve for x
    x = 301,242,463,367.62/634,449.74
  6. Step 6: Final answer
    x = 474,809.03

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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.