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Finding the Fourth Proportional to 630,533.40, 945,800.10 and 572,472.60

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Solution

The fourth proportional to 630,533.40, 945,800.10 and 572,472.60 is: 858,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,533.40 : 945,800.10 = 572,472.60 : x
  2. Step 2: Convert to fraction form
    630,533.40/945,800.10 = 572,472.60/x
  3. Step 3: Cross multiply
    630,533.40x = 945,800.10 × 572,472.60
  4. Step 4: Simplify right side
    630,533.40x = 541,444,642,327.26
  5. Step 5: Solve for x
    x = 541,444,642,327.26/630,533.40
  6. Step 6: Final answer
    x = 858,708.90

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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.