Home / 612,986.10-917,729.55-543,002.10

Finding the Fourth Proportional to 612,986.10, 917,729.55 and 543,002.10

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Solution

The fourth proportional to 612,986.10, 917,729.55 and 543,002.10 is: 812,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,986.10 : 917,729.55 = 543,002.10 : x
  2. Step 2: Convert to fraction form
    612,986.10/917,729.55 = 543,002.10/x
  3. Step 3: Cross multiply
    612,986.10x = 917,729.55 × 543,002.10
  4. Step 4: Simplify right side
    612,986.10x = 498,329,072,882.06
  5. Step 5: Solve for x
    x = 498,329,072,882.06/612,986.10
  6. Step 6: Final answer
    x = 812,953.30

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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.