Home / 828,194.40-1,142,881.80-465,633.60

Finding the Fourth Proportional to 828,194.40, 1,142,881.80 and 465,633.60

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Solution

The fourth proportional to 828,194.40, 1,142,881.80 and 465,633.60 is: 642,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,194.40 : 1,142,881.80 = 465,633.60 : x
  2. Step 2: Convert to fraction form
    828,194.40/1,142,881.80 = 465,633.60/x
  3. Step 3: Cross multiply
    828,194.40x = 1,142,881.80 × 465,633.60
  4. Step 4: Simplify right side
    828,194.40x = 532,164,166,908.48
  5. Step 5: Solve for x
    x = 532,164,166,908.48/828,194.40
  6. Step 6: Final answer
    x = 642,559.48

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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.