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Finding the Fourth Proportional to 352,681.28, 528,918.24 and 194,880.32

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Solution

The fourth proportional to 352,681.28, 528,918.24 and 194,880.32 is: 292,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,681.28 : 528,918.24 = 194,880.32 : x
  2. Step 2: Convert to fraction form
    352,681.28/528,918.24 = 194,880.32/x
  3. Step 3: Cross multiply
    352,681.28x = 528,918.24 × 194,880.32
  4. Step 4: Simplify right side
    352,681.28x = 103,075,755,865.04
  5. Step 5: Solve for x
    x = 103,075,755,865.04/352,681.28
  6. Step 6: Final answer
    x = 292,263.19

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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.