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Finding the Fourth Proportional to 593,091.20, 889,636.80 and 435,627.20

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Solution

The fourth proportional to 593,091.20, 889,636.80 and 435,627.20 is: 653,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,091.20 : 889,636.80 = 435,627.20 : x
  2. Step 2: Convert to fraction form
    593,091.20/889,636.80 = 435,627.20/x
  3. Step 3: Cross multiply
    593,091.20x = 889,636.80 × 435,627.20
  4. Step 4: Simplify right side
    593,091.20x = 387,549,988,200.96
  5. Step 5: Solve for x
    x = 387,549,988,200.96/593,091.20
  6. Step 6: Final answer
    x = 653,440.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.