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Finding the Fourth Proportional to 423,078.53, 634,021.10 and 233,624.19

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Solution

The fourth proportional to 423,078.53, 634,021.10 and 233,624.19 is: 350,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,078.53 : 634,021.10 = 233,624.19 : x
  2. Step 2: Convert to fraction form
    423,078.53/634,021.10 = 233,624.19/x
  3. Step 3: Cross multiply
    423,078.53x = 634,021.10 × 233,624.19
  4. Step 4: Simplify right side
    423,078.53x = 148,122,662,900.93
  5. Step 5: Solve for x
    x = 148,122,662,900.93/423,078.53
  6. Step 6: Final answer
    x = 350,106.78

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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.