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Finding the Fourth Proportional to 649,145.55, 973,718.33 and 649,145.55

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Solution

The fourth proportional to 649,145.55, 973,718.33 and 649,145.55 is: 973,718.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,145.55 : 973,718.33 = 649,145.55 : x
  2. Step 2: Convert to fraction form
    649,145.55/973,718.33 = 649,145.55/x
  3. Step 3: Cross multiply
    649,145.55x = 973,718.33 × 649,145.55
  4. Step 4: Simplify right side
    649,145.55x = 632,084,917,627.20
  5. Step 5: Solve for x
    x = 632,084,917,627.20/649,145.55
  6. Step 6: Final answer
    x = 973,718.33

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Double scale
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Similar ratio
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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.