Home / 876,167.69-1,209,127.16-513,852.87

Finding the Fourth Proportional to 876,167.69, 1,209,127.16 and 513,852.87

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Solution

The fourth proportional to 876,167.69, 1,209,127.16 and 513,852.87 is: 709,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,167.69 : 1,209,127.16 = 513,852.87 : x
  2. Step 2: Convert to fraction form
    876,167.69/1,209,127.16 = 513,852.87/x
  3. Step 3: Cross multiply
    876,167.69x = 1,209,127.16 × 513,852.87
  4. Step 4: Simplify right side
    876,167.69x = 621,313,456,184.41
  5. Step 5: Solve for x
    x = 621,313,456,184.41/876,167.69
  6. Step 6: Final answer
    x = 709,126.19

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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.