Home / 1,287,464.23-1,931,196.34-686,605.01

Finding the Fourth Proportional to 1,287,464.23, 1,931,196.34 and 686,605.01

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Solution

The fourth proportional to 1,287,464.23, 1,931,196.34 and 686,605.01 is: 1,029,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,464.23 : 1,931,196.34 = 686,605.01 : x
  2. Step 2: Convert to fraction form
    1,287,464.23/1,931,196.34 = 686,605.01/x
  3. Step 3: Cross multiply
    1,287,464.23x = 1,931,196.34 × 686,605.01
  4. Step 4: Simplify right side
    1,287,464.23x = 1,325,969,088,023.91
  5. Step 5: Solve for x
    x = 1,325,969,088,023.91/1,287,464.23
  6. Step 6: Final answer
    x = 1,029,907.52

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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.