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Finding the Fourth Proportional to 410,021.40, 615,032.10 and 363,019.80

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Solution

The fourth proportional to 410,021.40, 615,032.10 and 363,019.80 is: 544,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,021.40 : 615,032.10 = 363,019.80 : x
  2. Step 2: Convert to fraction form
    410,021.40/615,032.10 = 363,019.80/x
  3. Step 3: Cross multiply
    410,021.40x = 615,032.10 × 363,019.80
  4. Step 4: Simplify right side
    410,021.40x = 223,268,829,935.58
  5. Step 5: Solve for x
    x = 223,268,829,935.58/410,021.40
  6. Step 6: Final answer
    x = 544,529.70

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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.