Home / 781,459.44-1,171,328.04-511,262.88

Finding the Fourth Proportional to 781,459.44, 1,171,328.04 and 511,262.88

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Solution

The fourth proportional to 781,459.44, 1,171,328.04 and 511,262.88 is: 766,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,459.44 : 1,171,328.04 = 511,262.88 : x
  2. Step 2: Convert to fraction form
    781,459.44/1,171,328.04 = 511,262.88/x
  3. Step 3: Cross multiply
    781,459.44x = 1,171,328.04 × 511,262.88
  4. Step 4: Simplify right side
    781,459.44x = 598,856,547,155.16
  5. Step 5: Solve for x
    x = 598,856,547,155.16/781,459.44
  6. Step 6: Final answer
    x = 766,330.94

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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.