Home / 1,287,465.23-1,931,197.84-686,606.01

Finding the Fourth Proportional to 1,287,465.23, 1,931,197.84 and 686,606.01

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Solution

The fourth proportional to 1,287,465.23, 1,931,197.84 and 686,606.01 is: 1,029,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,465.23 : 1,931,197.84 = 686,606.01 : x
  2. Step 2: Convert to fraction form
    1,287,465.23/1,931,197.84 = 686,606.01/x
  3. Step 3: Cross multiply
    1,287,465.23x = 1,931,197.84 × 686,606.01
  4. Step 4: Simplify right side
    1,287,465.23x = 1,325,972,043,443.02
  5. Step 5: Solve for x
    x = 1,325,972,043,443.02/1,287,465.23
  6. Step 6: Final answer
    x = 1,029,909.01

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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.