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Finding the Fourth Proportional to 651,836.40, 977,754.60 and 573,039.60

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Solution

The fourth proportional to 651,836.40, 977,754.60 and 573,039.60 is: 859,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,836.40 : 977,754.60 = 573,039.60 : x
  2. Step 2: Convert to fraction form
    651,836.40/977,754.60 = 573,039.60/x
  3. Step 3: Cross multiply
    651,836.40x = 977,754.60 × 573,039.60
  4. Step 4: Simplify right side
    651,836.40x = 560,292,104,882.16
  5. Step 5: Solve for x
    x = 560,292,104,882.16/651,836.40
  6. Step 6: Final answer
    x = 859,559.40

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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.