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Finding the Fourth Proportional to 528,780.36, 793,068.66 and 149,698.20

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Solution

The fourth proportional to 528,780.36, 793,068.66 and 149,698.20 is: 224,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,780.36 : 793,068.66 = 149,698.20 : x
  2. Step 2: Convert to fraction form
    528,780.36/793,068.66 = 149,698.20/x
  3. Step 3: Cross multiply
    528,780.36x = 793,068.66 × 149,698.20
  4. Step 4: Simplify right side
    528,780.36x = 118,720,950,878.41
  5. Step 5: Solve for x
    x = 118,720,950,878.41/528,780.36
  6. Step 6: Final answer
    x = 224,518.46

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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.