Home / 939,853.74-1,296,999.30-510,133.74

Finding the Fourth Proportional to 939,853.74, 1,296,999.30 and 510,133.74

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Solution

The fourth proportional to 939,853.74, 1,296,999.30 and 510,133.74 is: 703,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,853.74 : 1,296,999.30 = 510,133.74 : x
  2. Step 2: Convert to fraction form
    939,853.74/1,296,999.30 = 510,133.74/x
  3. Step 3: Cross multiply
    939,853.74x = 1,296,999.30 × 510,133.74
  4. Step 4: Simplify right side
    939,853.74x = 661,643,103,686.38
  5. Step 5: Solve for x
    x = 661,643,103,686.38/939,853.74
  6. Step 6: Final answer
    x = 703,985.18

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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.