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Finding the Fourth Proportional to 972,002.70, 1,357,654.50 and 972,002.70

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Solution

The fourth proportional to 972,002.70, 1,357,654.50 and 972,002.70 is: 1,357,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,002.70 : 1,357,654.50 = 972,002.70 : x
  2. Step 2: Convert to fraction form
    972,002.70/1,357,654.50 = 972,002.70/x
  3. Step 3: Cross multiply
    972,002.70x = 1,357,654.50 × 972,002.70
  4. Step 4: Simplify right side
    972,002.70x = 1,319,643,839,667.15
  5. Step 5: Solve for x
    x = 1,319,643,839,667.15/972,002.70
  6. Step 6: Final answer
    x = 1,357,654.50

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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.