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Finding the Fourth Proportional to 462,403.40, 693,605.10 and 357,427.40

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Solution

The fourth proportional to 462,403.40, 693,605.10 and 357,427.40 is: 536,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,403.40 : 693,605.10 = 357,427.40 : x
  2. Step 2: Convert to fraction form
    462,403.40/693,605.10 = 357,427.40/x
  3. Step 3: Cross multiply
    462,403.40x = 693,605.10 × 357,427.40
  4. Step 4: Simplify right side
    462,403.40x = 247,913,467,519.74
  5. Step 5: Solve for x
    x = 247,913,467,519.74/462,403.40
  6. Step 6: Final answer
    x = 536,141.10

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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.