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Finding the Fourth Proportional to 707,146.37, 975,862.00 and 384,858.78

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Solution

The fourth proportional to 707,146.37, 975,862.00 and 384,858.78 is: 531,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,146.37 : 975,862.00 = 384,858.78 : x
  2. Step 2: Convert to fraction form
    707,146.37/975,862.00 = 384,858.78/x
  3. Step 3: Cross multiply
    707,146.37x = 975,862.00 × 384,858.78
  4. Step 4: Simplify right side
    707,146.37x = 375,569,054,657.32
  5. Step 5: Solve for x
    x = 375,569,054,657.32/707,146.37
  6. Step 6: Final answer
    x = 531,105.11

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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.