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Finding the Fourth Proportional to 530,777.66, 732,533.68 and 315,918.41

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Solution

The fourth proportional to 530,777.66, 732,533.68 and 315,918.41 is: 436,003.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,777.66 : 732,533.68 = 315,918.41 : x
  2. Step 2: Convert to fraction form
    530,777.66/732,533.68 = 315,918.41/x
  3. Step 3: Cross multiply
    530,777.66x = 732,533.68 × 315,918.41
  4. Step 4: Simplify right side
    530,777.66x = 231,420,877,683.28
  5. Step 5: Solve for x
    x = 231,420,877,683.28/530,777.66
  6. Step 6: Final answer
    x = 436,003.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.