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Finding the Fourth Proportional to 477,936.40, 716,904.60 and 404,208.40

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Solution

The fourth proportional to 477,936.40, 716,904.60 and 404,208.40 is: 606,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,936.40 : 716,904.60 = 404,208.40 : x
  2. Step 2: Convert to fraction form
    477,936.40/716,904.60 = 404,208.40/x
  3. Step 3: Cross multiply
    477,936.40x = 716,904.60 × 404,208.40
  4. Step 4: Simplify right side
    477,936.40x = 289,778,861,318.64
  5. Step 5: Solve for x
    x = 289,778,861,318.64/477,936.40
  6. Step 6: Final answer
    x = 606,312.60

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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.