Home / 519,936.60-779,904.90-145,959.60

Finding the Fourth Proportional to 519,936.60, 779,904.90 and 145,959.60

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Solution

The fourth proportional to 519,936.60, 779,904.90 and 145,959.60 is: 218,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,936.60 : 779,904.90 = 145,959.60 : x
  2. Step 2: Convert to fraction form
    519,936.60/779,904.90 = 145,959.60/x
  3. Step 3: Cross multiply
    519,936.60x = 779,904.90 × 145,959.60
  4. Step 4: Simplify right side
    519,936.60x = 113,834,607,242.04
  5. Step 5: Solve for x
    x = 113,834,607,242.04/519,936.60
  6. Step 6: Final answer
    x = 218,939.40

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Half scale
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Double scale
Find fourth proportional to 519,937.60, 779,906.40 and 145,960.60
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.