Home / 454,032.20-681,048.30-430,070.60

Finding the Fourth Proportional to 454,032.20, 681,048.30 and 430,070.60

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Solution

The fourth proportional to 454,032.20, 681,048.30 and 430,070.60 is: 645,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,032.20 : 681,048.30 = 430,070.60 : x
  2. Step 2: Convert to fraction form
    454,032.20/681,048.30 = 430,070.60/x
  3. Step 3: Cross multiply
    454,032.20x = 681,048.30 × 430,070.60
  4. Step 4: Simplify right side
    454,032.20x = 292,898,851,009.98
  5. Step 5: Solve for x
    x = 292,898,851,009.98/454,032.20
  6. Step 6: Final answer
    x = 645,105.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.