Home / 881,897.26-1,216,982.96-519,336.40

Finding the Fourth Proportional to 881,897.26, 1,216,982.96 and 519,336.40

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Solution

The fourth proportional to 881,897.26, 1,216,982.96 and 519,336.40 is: 716,663.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,897.26 : 1,216,982.96 = 519,336.40 : x
  2. Step 2: Convert to fraction form
    881,897.26/1,216,982.96 = 519,336.40/x
  3. Step 3: Cross multiply
    881,897.26x = 1,216,982.96 × 519,336.40
  4. Step 4: Simplify right side
    881,897.26x = 632,023,549,307.74
  5. Step 5: Solve for x
    x = 632,023,549,307.74/881,897.26
  6. Step 6: Final answer
    x = 716,663.47

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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.