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Finding the Fourth Proportional to 515,187, 710,716.14 and 364,367.16

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Solution

The fourth proportional to 515,187, 710,716.14 and 364,367.16 is: 502,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,187 : 710,716.14 = 364,367.16 : x
  2. Step 2: Convert to fraction form
    515,187/710,716.14 = 364,367.16/x
  3. Step 3: Cross multiply
    515,187x = 710,716.14 × 364,367.16
  4. Step 4: Simplify right side
    515,187x = 258,961,621,497.96
  5. Step 5: Solve for x
    x = 258,961,621,497.96/515,187
  6. Step 6: Final answer
    x = 502,655.58

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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.