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Finding the Fourth Proportional to 707,235.40, 976,005.46 and 384,966.28

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Solution

The fourth proportional to 707,235.40, 976,005.46 and 384,966.28 is: 531,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,235.40 : 976,005.46 = 384,966.28 : x
  2. Step 2: Convert to fraction form
    707,235.40/976,005.46 = 384,966.28/x
  3. Step 3: Cross multiply
    707,235.40x = 976,005.46 × 384,966.28
  4. Step 4: Simplify right side
    707,235.40x = 375,729,191,195.89
  5. Step 5: Solve for x
    x = 375,729,191,195.89/707,235.40
  6. Step 6: Final answer
    x = 531,264.68

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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.