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Finding the Fourth Proportional to 624,742.80, 937,111.10 and 151,428.16

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Solution

The fourth proportional to 624,742.80, 937,111.10 and 151,428.16 is: 227,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,742.80 : 937,111.10 = 151,428.16 : x
  2. Step 2: Convert to fraction form
    624,742.80/937,111.10 = 151,428.16/x
  3. Step 3: Cross multiply
    624,742.80x = 937,111.10 × 151,428.16
  4. Step 4: Simplify right side
    624,742.80x = 141,905,007,624.37
  5. Step 5: Solve for x
    x = 141,905,007,624.37/624,742.80
  6. Step 6: Final answer
    x = 227,141.49

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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.