Home / 493,335.10-680,585.19-289,282.42

Finding the Fourth Proportional to 493,335.10, 680,585.19 and 289,282.42

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Solution

The fourth proportional to 493,335.10, 680,585.19 and 289,282.42 is: 399,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,335.10 : 680,585.19 = 289,282.42 : x
  2. Step 2: Convert to fraction form
    493,335.10/680,585.19 = 289,282.42/x
  3. Step 3: Cross multiply
    493,335.10x = 680,585.19 × 289,282.42
  4. Step 4: Simplify right side
    493,335.10x = 196,881,330,779.36
  5. Step 5: Solve for x
    x = 196,881,330,779.36/493,335.10
  6. Step 6: Final answer
    x = 399,082.35

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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.