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Finding the Fourth Proportional to 651,684.80, 977,527.20 and 561,483.20

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Solution

The fourth proportional to 651,684.80, 977,527.20 and 561,483.20 is: 842,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,684.80 : 977,527.20 = 561,483.20 : x
  2. Step 2: Convert to fraction form
    651,684.80/977,527.20 = 561,483.20/x
  3. Step 3: Cross multiply
    651,684.80x = 977,527.20 × 561,483.20
  4. Step 4: Simplify right side
    651,684.80x = 548,865,100,343.04
  5. Step 5: Solve for x
    x = 548,865,100,343.04/651,684.80
  6. Step 6: Final answer
    x = 842,224.80

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Double scale
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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.