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Finding the Fourth Proportional to 369,545.49, 554,069.16 and 298,555.47

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Solution

The fourth proportional to 369,545.49, 554,069.16 and 298,555.47 is: 447,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,545.49 : 554,069.16 = 298,555.47 : x
  2. Step 2: Convert to fraction form
    369,545.49/554,069.16 = 298,555.47/x
  3. Step 3: Cross multiply
    369,545.49x = 554,069.16 × 298,555.47
  4. Step 4: Simplify right side
    369,545.49x = 165,420,378,476.31
  5. Step 5: Solve for x
    x = 165,420,378,476.31/369,545.49
  6. Step 6: Final answer
    x = 447,631.98

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1.5x scale

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.