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Finding the Fourth Proportional to 1,953,502.56, 2,931,253.05 and 929,989.29

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Solution

The fourth proportional to 1,953,502.56, 2,931,253.05 and 929,989.29 is: 1,395,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,502.56 : 2,931,253.05 = 929,989.29 : x
  2. Step 2: Convert to fraction form
    1,953,502.56/2,931,253.05 = 929,989.29/x
  3. Step 3: Cross multiply
    1,953,502.56x = 2,931,253.05 × 929,989.29
  4. Step 4: Simplify right side
    1,953,502.56x = 2,726,033,942,779.83
  5. Step 5: Solve for x
    x = 2,726,033,942,779.83/1,953,502.56
  6. Step 6: Final answer
    x = 1,395,459.62

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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.