Home / 513,038.64-707,992.20-286,684.14

Finding the Fourth Proportional to 513,038.64, 707,992.20 and 286,684.14

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Solution

The fourth proportional to 513,038.64, 707,992.20 and 286,684.14 is: 395,623.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,038.64 : 707,992.20 = 286,684.14 : x
  2. Step 2: Convert to fraction form
    513,038.64/707,992.20 = 286,684.14/x
  3. Step 3: Cross multiply
    513,038.64x = 707,992.20 × 286,684.14
  4. Step 4: Simplify right side
    513,038.64x = 202,970,134,983.71
  5. Step 5: Solve for x
    x = 202,970,134,983.71/513,038.64
  6. Step 6: Final answer
    x = 395,623.49

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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.