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Finding the Fourth Proportional to 528,978.04, 793,620.76 and 192,013.32

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Solution

The fourth proportional to 528,978.04, 793,620.76 and 192,013.32 is: 288,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,978.04 : 793,620.76 = 192,013.32 : x
  2. Step 2: Convert to fraction form
    528,978.04/793,620.76 = 192,013.32/x
  3. Step 3: Cross multiply
    528,978.04x = 793,620.76 × 192,013.32
  4. Step 4: Simplify right side
    528,978.04x = 152,385,756,948.52
  5. Step 5: Solve for x
    x = 152,385,756,948.52/528,978.04
  6. Step 6: Final answer
    x = 288,075.77

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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.