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Finding the Fourth Proportional to 654,054.69, 979,960.95 and 519,533.69

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Solution

The fourth proportional to 654,054.69, 979,960.95 and 519,533.69 is: 778,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,054.69 : 979,960.95 = 519,533.69 : x
  2. Step 2: Convert to fraction form
    654,054.69/979,960.95 = 519,533.69/x
  3. Step 3: Cross multiply
    654,054.69x = 979,960.95 × 519,533.69
  4. Step 4: Simplify right side
    654,054.69x = 509,122,723,509.60
  5. Step 5: Solve for x
    x = 509,122,723,509.60/654,054.69
  6. Step 6: Final answer
    x = 778,410.02

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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.