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Finding the Fourth Proportional to 637,865.40, 956,798.10 and 194,633.40

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Solution

The fourth proportional to 637,865.40, 956,798.10 and 194,633.40 is: 291,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,865.40 : 956,798.10 = 194,633.40 : x
  2. Step 2: Convert to fraction form
    637,865.40/956,798.10 = 194,633.40/x
  3. Step 3: Cross multiply
    637,865.40x = 956,798.10 × 194,633.40
  4. Step 4: Simplify right side
    637,865.40x = 186,224,867,316.54
  5. Step 5: Solve for x
    x = 186,224,867,316.54/637,865.40
  6. Step 6: Final answer
    x = 291,950.10

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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.