Home / 1,280,032.77-1,920,048.54-381,451.58

Finding the Fourth Proportional to 1,280,032.77, 1,920,048.54 and 381,451.58

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Solution

The fourth proportional to 1,280,032.77, 1,920,048.54 and 381,451.58 is: 572,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,032.77 : 1,920,048.54 = 381,451.58 : x
  2. Step 2: Convert to fraction form
    1,280,032.77/1,920,048.54 = 381,451.58/x
  3. Step 3: Cross multiply
    1,280,032.77x = 1,920,048.54 × 381,451.58
  4. Step 4: Simplify right side
    1,280,032.77x = 732,405,539,659.45
  5. Step 5: Solve for x
    x = 732,405,539,659.45/1,280,032.77
  6. Step 6: Final answer
    x = 572,177.18

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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.