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Finding the Fourth Proportional to 972,322.40, 1,454,984.40 and 657,394.40

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Solution

The fourth proportional to 972,322.40, 1,454,984.40 and 657,394.40 is: 983,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,322.40 : 1,454,984.40 = 657,394.40 : x
  2. Step 2: Convert to fraction form
    972,322.40/1,454,984.40 = 657,394.40/x
  3. Step 3: Cross multiply
    972,322.40x = 1,454,984.40 × 657,394.40
  4. Step 4: Simplify right side
    972,322.40x = 956,498,596,647.36
  5. Step 5: Solve for x
    x = 956,498,596,647.36/972,322.40
  6. Step 6: Final answer
    x = 983,725.76

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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.