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Finding the Fourth Proportional to 1,827,651.74, 2,742,038.12 and 817,623.86

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Solution

The fourth proportional to 1,827,651.74, 2,742,038.12 and 817,623.86 is: 1,226,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827,651.74 : 2,742,038.12 = 817,623.86 : x
  2. Step 2: Convert to fraction form
    1,827,651.74/2,742,038.12 = 817,623.86/x
  3. Step 3: Cross multiply
    1,827,651.74x = 2,742,038.12 × 817,623.86
  4. Step 4: Simplify right side
    1,827,651.74x = 2,241,955,780,275.41
  5. Step 5: Solve for x
    x = 2,241,955,780,275.41/1,827,651.74
  6. Step 6: Final answer
    x = 1,226,686.54

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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.