Home / 916,451.30-1,264,731.80-529,259.72

Finding the Fourth Proportional to 916,451.30, 1,264,731.80 and 529,259.72

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Solution

The fourth proportional to 916,451.30, 1,264,731.80 and 529,259.72 is: 730,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,451.30 : 1,264,731.80 = 529,259.72 : x
  2. Step 2: Convert to fraction form
    916,451.30/1,264,731.80 = 529,259.72/x
  3. Step 3: Cross multiply
    916,451.30x = 1,264,731.80 × 529,259.72
  4. Step 4: Simplify right side
    916,451.30x = 669,371,589,373.14
  5. Step 5: Solve for x
    x = 669,371,589,373.14/916,451.30
  6. Step 6: Final answer
    x = 730,395.16

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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.