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Finding the Fourth Proportional to 518,196.08, 715,107.48 and 291,914.48

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Solution

The fourth proportional to 518,196.08, 715,107.48 and 291,914.48 is: 402,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,196.08 : 715,107.48 = 291,914.48 : x
  2. Step 2: Convert to fraction form
    518,196.08/715,107.48 = 291,914.48/x
  3. Step 3: Cross multiply
    518,196.08x = 715,107.48 × 291,914.48
  4. Step 4: Simplify right side
    518,196.08x = 208,750,228,168.31
  5. Step 5: Solve for x
    x = 208,750,228,168.31/518,196.08
  6. Step 6: Final answer
    x = 402,840.23

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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.