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Finding the Fourth Proportional to 1,913,709, 2,870,563.50 and 791,807.16

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Solution

The fourth proportional to 1,913,709, 2,870,563.50 and 791,807.16 is: 1,187,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,709 : 2,870,563.50 = 791,807.16 : x
  2. Step 2: Convert to fraction form
    1,913,709/2,870,563.50 = 791,807.16/x
  3. Step 3: Cross multiply
    1,913,709x = 2,870,563.50 × 791,807.16
  4. Step 4: Simplify right side
    1,913,709x = 2,272,932,732,534.66
  5. Step 5: Solve for x
    x = 2,272,932,732,534.66/1,913,709
  6. Step 6: Final answer
    x = 1,187,710.74

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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.