Home / 879,538.83-1,213,765.89-477,130.83

Finding the Fourth Proportional to 879,538.83, 1,213,765.89 and 477,130.83

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Solution

The fourth proportional to 879,538.83, 1,213,765.89 and 477,130.83 is: 658,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,538.83 : 1,213,765.89 = 477,130.83 : x
  2. Step 2: Convert to fraction form
    879,538.83/1,213,765.89 = 477,130.83/x
  3. Step 3: Cross multiply
    879,538.83x = 1,213,765.89 × 477,130.83
  4. Step 4: Simplify right side
    879,538.83x = 579,125,126,521.39
  5. Step 5: Solve for x
    x = 579,125,126,521.39/879,538.83
  6. Step 6: Final answer
    x = 658,441.80

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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.