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Finding the Fourth Proportional to 480,728.56, 720,461.76 and 353,774.32

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Solution

The fourth proportional to 480,728.56, 720,461.76 and 353,774.32 is: 530,197.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,728.56 : 720,461.76 = 353,774.32 : x
  2. Step 2: Convert to fraction form
    480,728.56/720,461.76 = 353,774.32/x
  3. Step 3: Cross multiply
    480,728.56x = 720,461.76 × 353,774.32
  4. Step 4: Simplify right side
    480,728.56x = 254,880,869,230.00
  5. Step 5: Solve for x
    x = 254,880,869,230.00/480,728.56
  6. Step 6: Final answer
    x = 530,197.06

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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.