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Finding the Fourth Proportional to 564,131.49, 778,554.69 and 322,367.45

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Solution

The fourth proportional to 564,131.49, 778,554.69 and 322,367.45 is: 444,897.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,131.49 : 778,554.69 = 322,367.45 : x
  2. Step 2: Convert to fraction form
    564,131.49/778,554.69 = 322,367.45/x
  3. Step 3: Cross multiply
    564,131.49x = 778,554.69 × 322,367.45
  4. Step 4: Simplify right side
    564,131.49x = 250,980,684,999.19
  5. Step 5: Solve for x
    x = 250,980,684,999.19/564,131.49
  6. Step 6: Final answer
    x = 444,897.49

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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.