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Finding the Fourth Proportional to 328,549.15, 453,397.80 and 177,646.15

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Solution

The fourth proportional to 328,549.15, 453,397.80 and 177,646.15 is: 245,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,549.15 : 453,397.80 = 177,646.15 : x
  2. Step 2: Convert to fraction form
    328,549.15/453,397.80 = 177,646.15/x
  3. Step 3: Cross multiply
    328,549.15x = 453,397.80 × 177,646.15
  4. Step 4: Simplify right side
    328,549.15x = 80,544,373,588.47
  5. Step 5: Solve for x
    x = 80,544,373,588.47/328,549.15
  6. Step 6: Final answer
    x = 245,151.67

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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.