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Finding the Fourth Proportional to 528,809.04, 793,210.32 and 191,771.28

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Solution

The fourth proportional to 528,809.04, 793,210.32 and 191,771.28 is: 287,655.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,809.04 : 793,210.32 = 191,771.28 : x
  2. Step 2: Convert to fraction form
    528,809.04/793,210.32 = 191,771.28/x
  3. Step 3: Cross multiply
    528,809.04x = 793,210.32 × 191,771.28
  4. Step 4: Simplify right side
    528,809.04x = 152,114,958,375.61
  5. Step 5: Solve for x
    x = 152,114,958,375.61/528,809.04
  6. Step 6: Final answer
    x = 287,655.75

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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.