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Finding the Fourth Proportional to 480,817.32, 720,588.91 and 255,693.01

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Solution

The fourth proportional to 480,817.32, 720,588.91 and 255,693.01 is: 383,200.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,817.32 : 720,588.91 = 255,693.01 : x
  2. Step 2: Convert to fraction form
    480,817.32/720,588.91 = 255,693.01/x
  3. Step 3: Cross multiply
    480,817.32x = 720,588.91 × 255,693.01
  4. Step 4: Simplify right side
    480,817.32x = 184,249,547,370.52
  5. Step 5: Solve for x
    x = 184,249,547,370.52/480,817.32
  6. Step 6: Final answer
    x = 383,200.73

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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.