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Finding the Fourth Proportional to 705,618.54, 973,908.55 and 463,923.60

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Solution

The fourth proportional to 705,618.54, 973,908.55 and 463,923.60 is: 640,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,618.54 : 973,908.55 = 463,923.60 : x
  2. Step 2: Convert to fraction form
    705,618.54/973,908.55 = 463,923.60/x
  3. Step 3: Cross multiply
    705,618.54x = 973,908.55 × 463,923.60
  4. Step 4: Simplify right side
    705,618.54x = 451,819,159,426.97
  5. Step 5: Solve for x
    x = 451,819,159,426.97/705,618.54
  6. Step 6: Final answer
    x = 640,316.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.