Home / 853,981.68-1,178,555.76-472,000.20

Finding the Fourth Proportional to 853,981.68, 1,178,555.76 and 472,000.20

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Solution

The fourth proportional to 853,981.68, 1,178,555.76 and 472,000.20 is: 651,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,981.68 : 1,178,555.76 = 472,000.20 : x
  2. Step 2: Convert to fraction form
    853,981.68/1,178,555.76 = 472,000.20/x
  3. Step 3: Cross multiply
    853,981.68x = 1,178,555.76 × 472,000.20
  4. Step 4: Simplify right side
    853,981.68x = 556,278,554,431.15
  5. Step 5: Solve for x
    x = 556,278,554,431.15/853,981.68
  6. Step 6: Final answer
    x = 651,394.01

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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.