Home / 1,280,269.84-1,920,405.40-333,638.16

Finding the Fourth Proportional to 1,280,269.84, 1,920,405.40 and 333,638.16

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Solution

The fourth proportional to 1,280,269.84, 1,920,405.40 and 333,638.16 is: 500,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,269.84 : 1,920,405.40 = 333,638.16 : x
  2. Step 2: Convert to fraction form
    1,280,269.84/1,920,405.40 = 333,638.16/x
  3. Step 3: Cross multiply
    1,280,269.84x = 1,920,405.40 × 333,638.16
  4. Step 4: Simplify right side
    1,280,269.84x = 640,720,524,110.06
  5. Step 5: Solve for x
    x = 640,720,524,110.06/1,280,269.84
  6. Step 6: Final answer
    x = 500,457.41

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1.5x scale

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.