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Finding the Fourth Proportional to 528,931.98, 793,713.24 and 191,998.98

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Solution

The fourth proportional to 528,931.98, 793,713.24 and 191,998.98 is: 288,112.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,931.98 : 793,713.24 = 191,998.98 : x
  2. Step 2: Convert to fraction form
    528,931.98/793,713.24 = 191,998.98/x
  3. Step 3: Cross multiply
    528,931.98x = 793,713.24 × 191,998.98
  4. Step 4: Simplify right side
    528,931.98x = 152,392,132,492.50
  5. Step 5: Solve for x
    x = 152,392,132,492.50/528,931.98
  6. Step 6: Final answer
    x = 288,112.91

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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.