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Finding the Fourth Proportional to 403,508.41, 604,475.20 and 314,344.42

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Solution

The fourth proportional to 403,508.41, 604,475.20 and 314,344.42 is: 470,903.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,508.41 : 604,475.20 = 314,344.42 : x
  2. Step 2: Convert to fraction form
    403,508.41/604,475.20 = 314,344.42/x
  3. Step 3: Cross multiply
    403,508.41x = 604,475.20 × 314,344.42
  4. Step 4: Simplify right side
    403,508.41x = 190,013,406,148.38
  5. Step 5: Solve for x
    x = 190,013,406,148.38/403,508.41
  6. Step 6: Final answer
    x = 470,903.21

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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.