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Finding the Fourth Proportional to 707,236.40, 976,006.84 and 384,967.28

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Solution

The fourth proportional to 707,236.40, 976,006.84 and 384,967.28 is: 531,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,236.40 : 976,006.84 = 384,967.28 : x
  2. Step 2: Convert to fraction form
    707,236.40/976,006.84 = 384,967.28/x
  3. Step 3: Cross multiply
    707,236.40x = 976,006.84 × 384,967.28
  4. Step 4: Simplify right side
    707,236.40x = 375,730,698,456.20
  5. Step 5: Solve for x
    x = 375,730,698,456.20/707,236.40
  6. Step 6: Final answer
    x = 531,266.06

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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.