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Finding the Fourth Proportional to 437,738.40, 604,078.80 and 236,534.40

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Solution

The fourth proportional to 437,738.40, 604,078.80 and 236,534.40 is: 326,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,738.40 : 604,078.80 = 236,534.40 : x
  2. Step 2: Convert to fraction form
    437,738.40/604,078.80 = 236,534.40/x
  3. Step 3: Cross multiply
    437,738.40x = 604,078.80 × 236,534.40
  4. Step 4: Simplify right side
    437,738.40x = 142,885,416,510.72
  5. Step 5: Solve for x
    x = 142,885,416,510.72/437,738.40
  6. Step 6: Final answer
    x = 326,417.37

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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.