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Finding the Fourth Proportional to 552,686.80, 829,030.20 and 197,712.40

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Solution

The fourth proportional to 552,686.80, 829,030.20 and 197,712.40 is: 296,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,686.80 : 829,030.20 = 197,712.40 : x
  2. Step 2: Convert to fraction form
    552,686.80/829,030.20 = 197,712.40/x
  3. Step 3: Cross multiply
    552,686.80x = 829,030.20 × 197,712.40
  4. Step 4: Simplify right side
    552,686.80x = 163,909,550,514.48
  5. Step 5: Solve for x
    x = 163,909,550,514.48/552,686.80
  6. Step 6: Final answer
    x = 296,568.60

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Similar ratio
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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.