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Finding the Fourth Proportional to 508,807.23, 763,321.55 and 153,812.02

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Solution

The fourth proportional to 508,807.23, 763,321.55 and 153,812.02 is: 230,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,807.23 : 763,321.55 = 153,812.02 : x
  2. Step 2: Convert to fraction form
    508,807.23/763,321.55 = 153,812.02/x
  3. Step 3: Cross multiply
    508,807.23x = 763,321.55 × 153,812.02
  4. Step 4: Simplify right side
    508,807.23x = 117,408,029,515.03
  5. Step 5: Solve for x
    x = 117,408,029,515.03/508,807.23
  6. Step 6: Final answer
    x = 230,751.50

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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.