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Finding the Fourth Proportional to 480,322.58, 720,482.90 and 451,093.32

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Solution

The fourth proportional to 480,322.58, 720,482.90 and 451,093.32 is: 676,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,322.58 : 720,482.90 = 451,093.32 : x
  2. Step 2: Convert to fraction form
    480,322.58/720,482.90 = 451,093.32/x
  3. Step 3: Cross multiply
    480,322.58x = 720,482.90 × 451,093.32
  4. Step 4: Simplify right side
    480,322.58x = 325,005,021,108.76
  5. Step 5: Solve for x
    x = 325,005,021,108.76/480,322.58
  6. Step 6: Final answer
    x = 676,639.07

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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.