Home / 877,253.05-1,210,103.89-528,150.43

Finding the Fourth Proportional to 877,253.05, 1,210,103.89 and 528,150.43

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Solution

The fourth proportional to 877,253.05, 1,210,103.89 and 528,150.43 is: 728,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,253.05 : 1,210,103.89 = 528,150.43 : x
  2. Step 2: Convert to fraction form
    877,253.05/1,210,103.89 = 528,150.43/x
  3. Step 3: Cross multiply
    877,253.05x = 1,210,103.89 × 528,150.43
  4. Step 4: Simplify right side
    877,253.05x = 639,116,889,848.17
  5. Step 5: Solve for x
    x = 639,116,889,848.17/877,253.05
  6. Step 6: Final answer
    x = 728,543.37

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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.