Home / 879,815.61-1,214,141.27-477,407.61

Finding the Fourth Proportional to 879,815.61, 1,214,141.27 and 477,407.61

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Solution

The fourth proportional to 879,815.61, 1,214,141.27 and 477,407.61 is: 658,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,815.61 : 1,214,141.27 = 477,407.61 : x
  2. Step 2: Convert to fraction form
    879,815.61/1,214,141.27 = 477,407.61/x
  3. Step 3: Cross multiply
    879,815.61x = 1,214,141.27 × 477,407.61
  4. Step 4: Simplify right side
    879,815.61x = 579,640,279,526.03
  5. Step 5: Solve for x
    x = 579,640,279,526.03/879,815.61
  6. Step 6: Final answer
    x = 658,820.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.