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Finding the Fourth Proportional to 211,403.84, 291,567.88 and 185,855.92

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Solution

The fourth proportional to 211,403.84, 291,567.88 and 185,855.92 is: 256,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,403.84 : 291,567.88 = 185,855.92 : x
  2. Step 2: Convert to fraction form
    211,403.84/291,567.88 = 185,855.92/x
  3. Step 3: Cross multiply
    211,403.84x = 291,567.88 × 185,855.92
  4. Step 4: Simplify right side
    211,403.84x = 54,189,616,579.85
  5. Step 5: Solve for x
    x = 54,189,616,579.85/211,403.84
  6. Step 6: Final answer
    x = 256,332.22

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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.