Home / 828,186.40-1,142,870.76-465,625.60

Finding the Fourth Proportional to 828,186.40, 1,142,870.76 and 465,625.60

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Solution

The fourth proportional to 828,186.40, 1,142,870.76 and 465,625.60 is: 642,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,186.40 : 1,142,870.76 = 465,625.60 : x
  2. Step 2: Convert to fraction form
    828,186.40/1,142,870.76 = 465,625.60/x
  3. Step 3: Cross multiply
    828,186.40x = 1,142,870.76 × 465,625.60
  4. Step 4: Simplify right side
    828,186.40x = 532,149,883,347.46
  5. Step 5: Solve for x
    x = 532,149,883,347.46/828,186.40
  6. Step 6: Final answer
    x = 642,548.44

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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.