Home / 1,285,276.28-1,916,423.67-1,249,964.51

Finding the Fourth Proportional to 1,285,276.28, 1,916,423.67 and 1,249,964.51

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Solution

The fourth proportional to 1,285,276.28, 1,916,423.67 and 1,249,964.51 is: 1,863,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,276.28 : 1,916,423.67 = 1,249,964.51 : x
  2. Step 2: Convert to fraction form
    1,285,276.28/1,916,423.67 = 1,249,964.51/x
  3. Step 3: Cross multiply
    1,285,276.28x = 1,916,423.67 × 1,249,964.51
  4. Step 4: Simplify right side
    1,285,276.28x = 2,395,461,564,041.83
  5. Step 5: Solve for x
    x = 2,395,461,564,041.83/1,285,276.28
  6. Step 6: Final answer
    x = 1,863,771.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.