Home / 905,653.79-1,249,815.14-497,793.32

Finding the Fourth Proportional to 905,653.79, 1,249,815.14 and 497,793.32

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Solution

The fourth proportional to 905,653.79, 1,249,815.14 and 497,793.32 is: 686,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,653.79 : 1,249,815.14 = 497,793.32 : x
  2. Step 2: Convert to fraction form
    905,653.79/1,249,815.14 = 497,793.32/x
  3. Step 3: Cross multiply
    905,653.79x = 1,249,815.14 × 497,793.32
  4. Step 4: Simplify right side
    905,653.79x = 622,149,630,657.50
  5. Step 5: Solve for x
    x = 622,149,630,657.50/905,653.79
  6. Step 6: Final answer
    x = 686,961.88

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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.