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Finding the Fourth Proportional to 1,953,126.68, 2,931,583.80 and 942,961.10

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Solution

The fourth proportional to 1,953,126.68, 2,931,583.80 and 942,961.10 is: 1,415,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,126.68 : 2,931,583.80 = 942,961.10 : x
  2. Step 2: Convert to fraction form
    1,953,126.68/2,931,583.80 = 942,961.10/x
  3. Step 3: Cross multiply
    1,953,126.68x = 2,931,583.80 × 942,961.10
  4. Step 4: Simplify right side
    1,953,126.68x = 2,764,369,484,790.18
  5. Step 5: Solve for x
    x = 2,764,369,484,790.18/1,953,126.68
  6. Step 6: Final answer
    x = 1,415,355.96

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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.