Home / 1,230,369.21-1,697,914.20-686,527.92

Finding the Fourth Proportional to 1,230,369.21, 1,697,914.20 and 686,527.92

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Solution

The fourth proportional to 1,230,369.21, 1,697,914.20 and 686,527.92 is: 947,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,369.21 : 1,697,914.20 = 686,527.92 : x
  2. Step 2: Convert to fraction form
    1,230,369.21/1,697,914.20 = 686,527.92/x
  3. Step 3: Cross multiply
    1,230,369.21x = 1,697,914.20 × 686,527.92
  4. Step 4: Simplify right side
    1,230,369.21x = 1,165,665,506,638.94
  5. Step 5: Solve for x
    x = 1,165,665,506,638.94/1,230,369.21
  6. Step 6: Final answer
    x = 947,411.15

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Why These Related Problems?

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