Home / 636,748.52-878,633.19-430,465.82

Finding the Fourth Proportional to 636,748.52, 878,633.19 and 430,465.82

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Solution

The fourth proportional to 636,748.52, 878,633.19 and 430,465.82 is: 593,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,748.52 : 878,633.19 = 430,465.82 : x
  2. Step 2: Convert to fraction form
    636,748.52/878,633.19 = 430,465.82/x
  3. Step 3: Cross multiply
    636,748.52x = 878,633.19 × 430,465.82
  4. Step 4: Simplify right side
    636,748.52x = 378,221,552,219.40
  5. Step 5: Solve for x
    x = 378,221,552,219.40/636,748.52
  6. Step 6: Final answer
    x = 593,988.90

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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.