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Finding the Fourth Proportional to 389,553.64, 537,492.71 and 236,587.57

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Solution

The fourth proportional to 389,553.64, 537,492.71 and 236,587.57 is: 326,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,553.64 : 537,492.71 = 236,587.57 : x
  2. Step 2: Convert to fraction form
    389,553.64/537,492.71 = 236,587.57/x
  3. Step 3: Cross multiply
    389,553.64x = 537,492.71 × 236,587.57
  4. Step 4: Simplify right side
    389,553.64x = 127,164,093,399.35
  5. Step 5: Solve for x
    x = 127,164,093,399.35/389,553.64
  6. Step 6: Final answer
    x = 326,435.39

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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.