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Finding the Fourth Proportional to 480,322.74, 720,483.21 and 451,093.50

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Solution

The fourth proportional to 480,322.74, 720,483.21 and 451,093.50 is: 676,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,322.74 : 720,483.21 = 451,093.50 : x
  2. Step 2: Convert to fraction form
    480,322.74/720,483.21 = 451,093.50/x
  3. Step 3: Cross multiply
    480,322.74x = 720,483.21 × 451,093.50
  4. Step 4: Simplify right side
    480,322.74x = 325,005,292,890.14
  5. Step 5: Solve for x
    x = 325,005,292,890.14/480,322.74
  6. Step 6: Final answer
    x = 676,639.40

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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.