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Finding the Fourth Proportional to 304,296.10, 456,444.15 and 126,930.40

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Solution

The fourth proportional to 304,296.10, 456,444.15 and 126,930.40 is: 190,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,296.10 : 456,444.15 = 126,930.40 : x
  2. Step 2: Convert to fraction form
    304,296.10/456,444.15 = 126,930.40/x
  3. Step 3: Cross multiply
    304,296.10x = 456,444.15 × 126,930.40
  4. Step 4: Simplify right side
    304,296.10x = 57,936,638,537.16
  5. Step 5: Solve for x
    x = 57,936,638,537.16/304,296.10
  6. Step 6: Final answer
    x = 190,395.60

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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.