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Finding the Fourth Proportional to 705,185.67, 973,128.93 and 382,888.39

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Solution

The fourth proportional to 705,185.67, 973,128.93 and 382,888.39 is: 528,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,185.67 : 973,128.93 = 382,888.39 : x
  2. Step 2: Convert to fraction form
    705,185.67/973,128.93 = 382,888.39/x
  3. Step 3: Cross multiply
    705,185.67x = 973,128.93 × 382,888.39
  4. Step 4: Simplify right side
    705,185.67x = 372,599,766,837.30
  5. Step 5: Solve for x
    x = 372,599,766,837.30/705,185.67
  6. Step 6: Final answer
    x = 528,371.16

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1.5x scale

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.