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Finding the Fourth Proportional to 373,140.53, 514,934.12 and 211,995.86

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Solution

The fourth proportional to 373,140.53, 514,934.12 and 211,995.86 is: 292,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,140.53 : 514,934.12 = 211,995.86 : x
  2. Step 2: Convert to fraction form
    373,140.53/514,934.12 = 211,995.86/x
  3. Step 3: Cross multiply
    373,140.53x = 514,934.12 × 211,995.86
  4. Step 4: Simplify right side
    373,140.53x = 109,163,901,612.74
  5. Step 5: Solve for x
    x = 109,163,901,612.74/373,140.53
  6. Step 6: Final answer
    x = 292,554.39

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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.