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Finding the Fourth Proportional to 6,342,011.64, 8,748,315.90 and 4,047,586.20

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Solution

The fourth proportional to 6,342,011.64, 8,748,315.90 and 4,047,586.20 is: 5,583,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342,011.64 : 8,748,315.90 = 4,047,586.20 : x
  2. Step 2: Convert to fraction form
    6,342,011.64/8,748,315.90 = 4,047,586.20/x
  3. Step 3: Cross multiply
    6,342,011.64x = 8,748,315.90 × 4,047,586.20
  4. Step 4: Simplify right side
    6,342,011.64x = 35,409,562,710,080.59
  5. Step 5: Solve for x
    x = 35,409,562,710,080.59/6,342,011.64
  6. Step 6: Final answer
    x = 5,583,332.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.