Home / 527,045.79-727,323.03-285,328.20

Finding the Fourth Proportional to 527,045.79, 727,323.03 and 285,328.20

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Solution

The fourth proportional to 527,045.79, 727,323.03 and 285,328.20 is: 393,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,045.79 : 727,323.03 = 285,328.20 : x
  2. Step 2: Convert to fraction form
    527,045.79/727,323.03 = 285,328.20/x
  3. Step 3: Cross multiply
    527,045.79x = 727,323.03 × 285,328.20
  4. Step 4: Simplify right side
    527,045.79x = 207,525,770,968.45
  5. Step 5: Solve for x
    x = 207,525,770,968.45/527,045.79
  6. Step 6: Final answer
    x = 393,752.83

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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.