Home / 466,570.23-643,664.12-285,289.71

Finding the Fourth Proportional to 466,570.23, 643,664.12 and 285,289.71

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Solution

The fourth proportional to 466,570.23, 643,664.12 and 285,289.71 is: 393,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,570.23 : 643,664.12 = 285,289.71 : x
  2. Step 2: Convert to fraction form
    466,570.23/643,664.12 = 285,289.71/x
  3. Step 3: Cross multiply
    466,570.23x = 643,664.12 × 285,289.71
  4. Step 4: Simplify right side
    466,570.23x = 183,630,748,705.76
  5. Step 5: Solve for x
    x = 183,630,748,705.76/466,570.23
  6. Step 6: Final answer
    x = 393,575.79

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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.