Home / 1,287,440.43-1,931,226.25-434,543.23

Finding the Fourth Proportional to 1,287,440.43, 1,931,226.25 and 434,543.23

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Solution

The fourth proportional to 1,287,440.43, 1,931,226.25 and 434,543.23 is: 651,836.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,440.43 : 1,931,226.25 = 434,543.23 : x
  2. Step 2: Convert to fraction form
    1,287,440.43/1,931,226.25 = 434,543.23/x
  3. Step 3: Cross multiply
    1,287,440.43x = 1,931,226.25 × 434,543.23
  4. Step 4: Simplify right side
    1,287,440.43x = 839,201,294,678.23
  5. Step 5: Solve for x
    x = 839,201,294,678.23/1,287,440.43
  6. Step 6: Final answer
    x = 651,836.99

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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.