Home / 879,538.32-1,213,765.22-477,130.32

Finding the Fourth Proportional to 879,538.32, 1,213,765.22 and 477,130.32

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Solution

The fourth proportional to 879,538.32, 1,213,765.22 and 477,130.32 is: 658,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,538.32 : 1,213,765.22 = 477,130.32 : x
  2. Step 2: Convert to fraction form
    879,538.32/1,213,765.22 = 477,130.32/x
  3. Step 3: Cross multiply
    879,538.32x = 1,213,765.22 × 477,130.32
  4. Step 4: Simplify right side
    879,538.32x = 579,124,187,823.47
  5. Step 5: Solve for x
    x = 579,124,187,823.47/879,538.32
  6. Step 6: Final answer
    x = 658,441.11

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Double scale
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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.