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Finding the Fourth Proportional to 540,159.14, 745,427.44 and 298,447.28

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Solution

The fourth proportional to 540,159.14, 745,427.44 and 298,447.28 is: 411,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,159.14 : 745,427.44 = 298,447.28 : x
  2. Step 2: Convert to fraction form
    540,159.14/745,427.44 = 298,447.28/x
  3. Step 3: Cross multiply
    540,159.14x = 745,427.44 × 298,447.28
  4. Step 4: Simplify right side
    540,159.14x = 222,470,791,905.36
  5. Step 5: Solve for x
    x = 222,470,791,905.36/540,159.14
  6. Step 6: Final answer
    x = 411,861.57

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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.