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Finding the Fourth Proportional to 810,717.32, 1,118,901 and 466,546.16

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Solution

The fourth proportional to 810,717.32, 1,118,901 and 466,546.16 is: 643,897.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,717.32 : 1,118,901 = 466,546.16 : x
  2. Step 2: Convert to fraction form
    810,717.32/1,118,901 = 466,546.16/x
  3. Step 3: Cross multiply
    810,717.32x = 1,118,901 × 466,546.16
  4. Step 4: Simplify right side
    810,717.32x = 522,018,964,970.16
  5. Step 5: Solve for x
    x = 522,018,964,970.16/810,717.32
  6. Step 6: Final answer
    x = 643,897.63

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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.