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Finding the Fourth Proportional to 384,672.90, 577,009.35 and 384,672.90

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Solution

The fourth proportional to 384,672.90, 577,009.35 and 384,672.90 is: 577,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,672.90 : 577,009.35 = 384,672.90 : x
  2. Step 2: Convert to fraction form
    384,672.90/577,009.35 = 384,672.90/x
  3. Step 3: Cross multiply
    384,672.90x = 577,009.35 × 384,672.90
  4. Step 4: Simplify right side
    384,672.90x = 221,959,859,991.62
  5. Step 5: Solve for x
    x = 221,959,859,991.62/384,672.90
  6. Step 6: Final answer
    x = 577,009.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.