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Finding the Fourth Proportional to 634,530.36, 875,636.46 and 408,175.32

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Solution

The fourth proportional to 634,530.36, 875,636.46 and 408,175.32 is: 563,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,530.36 : 875,636.46 = 408,175.32 : x
  2. Step 2: Convert to fraction form
    634,530.36/875,636.46 = 408,175.32/x
  3. Step 3: Cross multiply
    634,530.36x = 875,636.46 × 408,175.32
  4. Step 4: Simplify right side
    634,530.36x = 357,413,192,264.17
  5. Step 5: Solve for x
    x = 357,413,192,264.17/634,530.36
  6. Step 6: Final answer
    x = 563,272.01

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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.