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Finding the Fourth Proportional to 543,247.21, 749,681.64 and 325,582.32

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Solution

The fourth proportional to 543,247.21, 749,681.64 and 325,582.32 is: 449,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,247.21 : 749,681.64 = 325,582.32 : x
  2. Step 2: Convert to fraction form
    543,247.21/749,681.64 = 325,582.32/x
  3. Step 3: Cross multiply
    543,247.21x = 749,681.64 × 325,582.32
  4. Step 4: Simplify right side
    543,247.21x = 244,083,087,612.61
  5. Step 5: Solve for x
    x = 244,083,087,612.61/543,247.21
  6. Step 6: Final answer
    x = 449,303.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.