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Finding the Fourth Proportional to 700,626.18, 966,935.55 and 428,873.65

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Solution

The fourth proportional to 700,626.18, 966,935.55 and 428,873.65 is: 591,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,626.18 : 966,935.55 = 428,873.65 : x
  2. Step 2: Convert to fraction form
    700,626.18/966,935.55 = 428,873.65/x
  3. Step 3: Cross multiply
    700,626.18x = 966,935.55 × 428,873.65
  4. Step 4: Simplify right side
    700,626.18x = 414,693,178,643.26
  5. Step 5: Solve for x
    x = 414,693,178,643.26/700,626.18
  6. Step 6: Final answer
    x = 591,889.36

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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.