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Finding the Fourth Proportional to 961,333.84, 1,326,649.32 and 531,643

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Solution

The fourth proportional to 961,333.84, 1,326,649.32 and 531,643 is: 733,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,333.84 : 1,326,649.32 = 531,643 : x
  2. Step 2: Convert to fraction form
    961,333.84/1,326,649.32 = 531,643/x
  3. Step 3: Cross multiply
    961,333.84x = 1,326,649.32 × 531,643
  4. Step 4: Simplify right side
    961,333.84x = 705,303,824,432.76
  5. Step 5: Solve for x
    x = 705,303,824,432.76/961,333.84
  6. Step 6: Final answer
    x = 733,672.11

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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.