Home / 708,678.71-977,182.11-579,215.39

Finding the Fourth Proportional to 708,678.71, 977,182.11 and 579,215.39

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Solution

The fourth proportional to 708,678.71, 977,182.11 and 579,215.39 is: 798,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,678.71 : 977,182.11 = 579,215.39 : x
  2. Step 2: Convert to fraction form
    708,678.71/977,182.11 = 579,215.39/x
  3. Step 3: Cross multiply
    708,678.71x = 977,182.11 × 579,215.39
  4. Step 4: Simplify right side
    708,678.71x = 565,998,913,293.24
  5. Step 5: Solve for x
    x = 565,998,913,293.24/708,678.71
  6. Step 6: Final answer
    x = 798,667.86

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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.