Home / 931,019.02-1,284,807.09-528,611.02

Finding the Fourth Proportional to 931,019.02, 1,284,807.09 and 528,611.02

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Solution

The fourth proportional to 931,019.02, 1,284,807.09 and 528,611.02 is: 729,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,019.02 : 1,284,807.09 = 528,611.02 : x
  2. Step 2: Convert to fraction form
    931,019.02/1,284,807.09 = 528,611.02/x
  3. Step 3: Cross multiply
    931,019.02x = 1,284,807.09 × 528,611.02
  4. Step 4: Simplify right side
    931,019.02x = 679,163,186,348.13
  5. Step 5: Solve for x
    x = 679,163,186,348.13/931,019.02
  6. Step 6: Final answer
    x = 729,483.69

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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.