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Finding the Fourth Proportional to 707,208.94, 975,969.06 and 384,939.94

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Solution

The fourth proportional to 707,208.94, 975,969.06 and 384,939.94 is: 531,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,208.94 : 975,969.06 = 384,939.94 : x
  2. Step 2: Convert to fraction form
    707,208.94/975,969.06 = 384,939.94/x
  3. Step 3: Cross multiply
    707,208.94x = 975,969.06 × 384,939.94
  4. Step 4: Simplify right side
    707,208.94x = 375,689,471,398.26
  5. Step 5: Solve for x
    x = 375,689,471,398.26/707,208.94
  6. Step 6: Final answer
    x = 531,228.40

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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.