Home / 413,915.78-571,637.45-285,188.96

Finding the Fourth Proportional to 413,915.78, 571,637.45 and 285,188.96

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Solution

The fourth proportional to 413,915.78, 571,637.45 and 285,188.96 is: 393,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,915.78 : 571,637.45 = 285,188.96 : x
  2. Step 2: Convert to fraction form
    413,915.78/571,637.45 = 285,188.96/x
  3. Step 3: Cross multiply
    413,915.78x = 571,637.45 × 285,188.96
  4. Step 4: Simplify right side
    413,915.78x = 163,024,688,436.61
  5. Step 5: Solve for x
    x = 163,024,688,436.61/413,915.78
  6. Step 6: Final answer
    x = 393,859.56

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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.