Home / 527,136.65-727,445.52-285,414.23

Finding the Fourth Proportional to 527,136.65, 727,445.52 and 285,414.23

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Solution

The fourth proportional to 527,136.65, 727,445.52 and 285,414.23 is: 393,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,136.65 : 727,445.52 = 285,414.23 : x
  2. Step 2: Convert to fraction form
    527,136.65/727,445.52 = 285,414.23/x
  3. Step 3: Cross multiply
    527,136.65x = 727,445.52 × 285,414.23
  4. Step 4: Simplify right side
    527,136.65x = 207,623,302,957.75
  5. Step 5: Solve for x
    x = 207,623,302,957.75/527,136.65
  6. Step 6: Final answer
    x = 393,869.98

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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.