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Finding the Fourth Proportional to 292,291.20, 437,515.20 and 283,075.20

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Solution

The fourth proportional to 292,291.20, 437,515.20 and 283,075.20 is: 423,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,291.20 : 437,515.20 = 283,075.20 : x
  2. Step 2: Convert to fraction form
    292,291.20/437,515.20 = 283,075.20/x
  3. Step 3: Cross multiply
    292,291.20x = 437,515.20 × 283,075.20
  4. Step 4: Simplify right side
    292,291.20x = 123,849,702,743.04
  5. Step 5: Solve for x
    x = 123,849,702,743.04/292,291.20
  6. Step 6: Final answer
    x = 423,720.26

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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.