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Finding the Fourth Proportional to 629,865.40, 944,798.10 and 472,401.40

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Solution

The fourth proportional to 629,865.40, 944,798.10 and 472,401.40 is: 708,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,865.40 : 944,798.10 = 472,401.40 : x
  2. Step 2: Convert to fraction form
    629,865.40/944,798.10 = 472,401.40/x
  3. Step 3: Cross multiply
    629,865.40x = 944,798.10 × 472,401.40
  4. Step 4: Simplify right side
    629,865.40x = 446,323,945,157.34
  5. Step 5: Solve for x
    x = 446,323,945,157.34/629,865.40
  6. Step 6: Final answer
    x = 708,602.10

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Half scale
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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.