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Finding the Fourth Proportional to 443,504.72, 612,037.10 and 252,518.20

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Solution

The fourth proportional to 443,504.72, 612,037.10 and 252,518.20 is: 348,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,504.72 : 612,037.10 = 252,518.20 : x
  2. Step 2: Convert to fraction form
    443,504.72/612,037.10 = 252,518.20/x
  3. Step 3: Cross multiply
    443,504.72x = 612,037.10 × 252,518.20
  4. Step 4: Simplify right side
    443,504.72x = 154,550,506,825.22
  5. Step 5: Solve for x
    x = 154,550,506,825.22/443,504.72
  6. Step 6: Final answer
    x = 348,475.45

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Half scale
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Double scale
Find fourth proportional to 443,505.72, 612,038.48 and 252,519.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.