Home / 819,404.02-1,131,491.55-514,005.36

Finding the Fourth Proportional to 819,404.02, 1,131,491.55 and 514,005.36

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Solution

The fourth proportional to 819,404.02, 1,131,491.55 and 514,005.36 is: 709,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,404.02 : 1,131,491.55 = 514,005.36 : x
  2. Step 2: Convert to fraction form
    819,404.02/1,131,491.55 = 514,005.36/x
  3. Step 3: Cross multiply
    819,404.02x = 1,131,491.55 × 514,005.36
  4. Step 4: Simplify right side
    819,404.02x = 581,592,721,494.71
  5. Step 5: Solve for x
    x = 581,592,721,494.71/819,404.02
  6. Step 6: Final answer
    x = 709,775.28

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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.