Home / 451,506.09-623,090.30-255,256.95

Finding the Fourth Proportional to 451,506.09, 623,090.30 and 255,256.95

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Solution

The fourth proportional to 451,506.09, 623,090.30 and 255,256.95 is: 352,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,506.09 : 623,090.30 = 255,256.95 : x
  2. Step 2: Convert to fraction form
    451,506.09/623,090.30 = 255,256.95/x
  3. Step 3: Cross multiply
    451,506.09x = 623,090.30 × 255,256.95
  4. Step 4: Simplify right side
    451,506.09x = 159,048,128,276.30
  5. Step 5: Solve for x
    x = 159,048,128,276.30/451,506.09
  6. Step 6: Final answer
    x = 352,261.31

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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.