Home / 991,717.51-1,488,136.76-423,044.89

Finding the Fourth Proportional to 991,717.51, 1,488,136.76 and 423,044.89

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Solution

The fourth proportional to 991,717.51, 1,488,136.76 and 423,044.89 is: 634,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,717.51 : 1,488,136.76 = 423,044.89 : x
  2. Step 2: Convert to fraction form
    991,717.51/1,488,136.76 = 423,044.89/x
  3. Step 3: Cross multiply
    991,717.51x = 1,488,136.76 × 423,044.89
  4. Step 4: Simplify right side
    991,717.51x = 629,548,642,383.25
  5. Step 5: Solve for x
    x = 629,548,642,383.25/991,717.51
  6. Step 6: Final answer
    x = 634,806.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.