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Finding the Fourth Proportional to 536,411.25, 740,255.37 and 291,400.56

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Solution

The fourth proportional to 536,411.25, 740,255.37 and 291,400.56 is: 402,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,411.25 : 740,255.37 = 291,400.56 : x
  2. Step 2: Convert to fraction form
    536,411.25/740,255.37 = 291,400.56/x
  3. Step 3: Cross multiply
    536,411.25x = 740,255.37 × 291,400.56
  4. Step 4: Simplify right side
    536,411.25x = 215,710,829,361.01
  5. Step 5: Solve for x
    x = 215,710,829,361.01/536,411.25
  6. Step 6: Final answer
    x = 402,137.03

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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.