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Finding the Fourth Proportional to 384,907.21, 573,302.08 and 367,637.20

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Solution

The fourth proportional to 384,907.21, 573,302.08 and 367,637.20 is: 547,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,907.21 : 573,302.08 = 367,637.20 : x
  2. Step 2: Convert to fraction form
    384,907.21/573,302.08 = 367,637.20/x
  3. Step 3: Cross multiply
    384,907.21x = 573,302.08 × 367,637.20
  4. Step 4: Simplify right side
    384,907.21x = 210,767,172,364.47
  5. Step 5: Solve for x
    x = 210,767,172,364.47/384,907.21
  6. Step 6: Final answer
    x = 547,579.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.