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Finding the Fourth Proportional to 553,270.40, 828,350.40 and 537,718.40

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Solution

The fourth proportional to 553,270.40, 828,350.40 and 537,718.40 is: 805,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,270.40 : 828,350.40 = 537,718.40 : x
  2. Step 2: Convert to fraction form
    553,270.40/828,350.40 = 537,718.40/x
  3. Step 3: Cross multiply
    553,270.40x = 828,350.40 × 537,718.40
  4. Step 4: Simplify right side
    553,270.40x = 445,419,251,727.36
  5. Step 5: Solve for x
    x = 445,419,251,727.36/553,270.40
  6. Step 6: Final answer
    x = 805,066.12

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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.