Home / 450,788.76-621,999.54-257,192.28

Finding the Fourth Proportional to 450,788.76, 621,999.54 and 257,192.28

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Solution

The fourth proportional to 450,788.76, 621,999.54 and 257,192.28 is: 354,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,788.76 : 621,999.54 = 257,192.28 : x
  2. Step 2: Convert to fraction form
    450,788.76/621,999.54 = 257,192.28/x
  3. Step 3: Cross multiply
    450,788.76x = 621,999.54 × 257,192.28
  4. Step 4: Simplify right side
    450,788.76x = 159,973,479,851.55
  5. Step 5: Solve for x
    x = 159,973,479,851.55/450,788.76
  6. Step 6: Final answer
    x = 354,874.60

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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.