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Finding the Fourth Proportional to 587,641.08, 811,112.82 and 346,063.74

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Solution

The fourth proportional to 587,641.08, 811,112.82 and 346,063.74 is: 477,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,641.08 : 811,112.82 = 346,063.74 : x
  2. Step 2: Convert to fraction form
    587,641.08/811,112.82 = 346,063.74/x
  3. Step 3: Cross multiply
    587,641.08x = 811,112.82 × 346,063.74
  4. Step 4: Simplify right side
    587,641.08x = 280,696,736,051.15
  5. Step 5: Solve for x
    x = 280,696,736,051.15/587,641.08
  6. Step 6: Final answer
    x = 477,666.97

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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.