Home / 811,076.74-1,118,913.87-524,689.18

Finding the Fourth Proportional to 811,076.74, 1,118,913.87 and 524,689.18

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Solution

The fourth proportional to 811,076.74, 1,118,913.87 and 524,689.18 is: 723,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,076.74 : 1,118,913.87 = 524,689.18 : x
  2. Step 2: Convert to fraction form
    811,076.74/1,118,913.87 = 524,689.18/x
  3. Step 3: Cross multiply
    811,076.74x = 1,118,913.87 × 524,689.18
  4. Step 4: Simplify right side
    811,076.74x = 587,082,000,940.93
  5. Step 5: Solve for x
    x = 587,082,000,940.93/811,076.74
  6. Step 6: Final answer
    x = 723,830.40

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Double scale
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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.