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Finding the Fourth Proportional to 414,030.40, 621,045.60 and 414,030.40

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Solution

The fourth proportional to 414,030.40, 621,045.60 and 414,030.40 is: 621,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,030.40 : 621,045.60 = 414,030.40 : x
  2. Step 2: Convert to fraction form
    414,030.40/621,045.60 = 414,030.40/x
  3. Step 3: Cross multiply
    414,030.40x = 621,045.60 × 414,030.40
  4. Step 4: Simplify right side
    414,030.40x = 257,131,758,186.24
  5. Step 5: Solve for x
    x = 257,131,758,186.24/414,030.40
  6. Step 6: Final answer
    x = 621,045.60

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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.