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Finding the Fourth Proportional to 972,602.40, 1,455,404.40 and 657,674.40

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Solution

The fourth proportional to 972,602.40, 1,455,404.40 and 657,674.40 is: 984,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,602.40 : 1,455,404.40 = 657,674.40 : x
  2. Step 2: Convert to fraction form
    972,602.40/1,455,404.40 = 657,674.40/x
  3. Step 3: Cross multiply
    972,602.40x = 1,455,404.40 × 657,674.40
  4. Step 4: Simplify right side
    972,602.40x = 957,182,215,527.36
  5. Step 5: Solve for x
    x = 957,182,215,527.36/972,602.40
  6. Step 6: Final answer
    x = 984,145.44

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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.