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Finding the Fourth Proportional to 509,363.60, 764,045.40 and 462,124.40

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Solution

The fourth proportional to 509,363.60, 764,045.40 and 462,124.40 is: 693,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,363.60 : 764,045.40 = 462,124.40 : x
  2. Step 2: Convert to fraction form
    509,363.60/764,045.40 = 462,124.40/x
  3. Step 3: Cross multiply
    509,363.60x = 764,045.40 × 462,124.40
  4. Step 4: Simplify right side
    509,363.60x = 353,084,022,047.76
  5. Step 5: Solve for x
    x = 353,084,022,047.76/509,363.60
  6. Step 6: Final answer
    x = 693,186.60

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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.