Home / 783,717.28-1,081,648-477,971.12

Finding the Fourth Proportional to 783,717.28, 1,081,648 and 477,971.12

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Solution

The fourth proportional to 783,717.28, 1,081,648 and 477,971.12 is: 659,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,717.28 : 1,081,648 = 477,971.12 : x
  2. Step 2: Convert to fraction form
    783,717.28/1,081,648 = 477,971.12/x
  3. Step 3: Cross multiply
    783,717.28x = 1,081,648 × 477,971.12
  4. Step 4: Simplify right side
    783,717.28x = 516,996,506,005.76
  5. Step 5: Solve for x
    x = 516,996,506,005.76/783,717.28
  6. Step 6: Final answer
    x = 659,672.20

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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.