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Finding the Fourth Proportional to 304,316.90, 426,743.50 and 304,316.90

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Solution

The fourth proportional to 304,316.90, 426,743.50 and 304,316.90 is: 426,743.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,316.90 : 426,743.50 = 304,316.90 : x
  2. Step 2: Convert to fraction form
    304,316.90/426,743.50 = 304,316.90/x
  3. Step 3: Cross multiply
    304,316.90x = 426,743.50 × 304,316.90
  4. Step 4: Simplify right side
    304,316.90x = 129,865,259,015.15
  5. Step 5: Solve for x
    x = 129,865,259,015.15/304,316.90
  6. Step 6: Final answer
    x = 426,743.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.