Home / 1,280,259.84-1,920,390.40-333,628.16

Finding the Fourth Proportional to 1,280,259.84, 1,920,390.40 and 333,628.16

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Solution

The fourth proportional to 1,280,259.84, 1,920,390.40 and 333,628.16 is: 500,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,259.84 : 1,920,390.40 = 333,628.16 : x
  2. Step 2: Convert to fraction form
    1,280,259.84/1,920,390.40 = 333,628.16/x
  3. Step 3: Cross multiply
    1,280,259.84x = 1,920,390.40 × 333,628.16
  4. Step 4: Simplify right side
    1,280,259.84x = 640,696,315,633.66
  5. Step 5: Solve for x
    x = 640,696,315,633.66/1,280,259.84
  6. Step 6: Final answer
    x = 500,442.41

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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.