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Finding the Fourth Proportional to 527,152.50, 727,509.33 and 325,987.38

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Solution

The fourth proportional to 527,152.50, 727,509.33 and 325,987.38 is: 449,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,152.50 : 727,509.33 = 325,987.38 : x
  2. Step 2: Convert to fraction form
    527,152.50/727,509.33 = 325,987.38/x
  3. Step 3: Cross multiply
    527,152.50x = 727,509.33 × 325,987.38
  4. Step 4: Simplify right side
    527,152.50x = 237,158,860,412.26
  5. Step 5: Solve for x
    x = 237,158,860,412.26/527,152.50
  6. Step 6: Final answer
    x = 449,886.63

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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.