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Finding the Fourth Proportional to 403,259.64, 604,482.84 and 253,606.86

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Solution

The fourth proportional to 403,259.64, 604,482.84 and 253,606.86 is: 380,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,259.64 : 604,482.84 = 253,606.86 : x
  2. Step 2: Convert to fraction form
    403,259.64/604,482.84 = 253,606.86/x
  3. Step 3: Cross multiply
    403,259.64x = 604,482.84 × 253,606.86
  4. Step 4: Simplify right side
    403,259.64x = 153,300,994,976.28
  5. Step 5: Solve for x
    x = 153,300,994,976.28/403,259.64
  6. Step 6: Final answer
    x = 380,154.57

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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.