Home / 649,139.20-973,708.80-538,547.20

Finding the Fourth Proportional to 649,139.20, 973,708.80 and 538,547.20

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Solution

The fourth proportional to 649,139.20, 973,708.80 and 538,547.20 is: 807,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,139.20 : 973,708.80 = 538,547.20 : x
  2. Step 2: Convert to fraction form
    649,139.20/973,708.80 = 538,547.20/x
  3. Step 3: Cross multiply
    649,139.20x = 973,708.80 × 538,547.20
  4. Step 4: Simplify right side
    649,139.20x = 524,388,147,855.36
  5. Step 5: Solve for x
    x = 524,388,147,855.36/649,139.20
  6. Step 6: Final answer
    x = 807,820.80

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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.