Home / 736,880.60-1,105,320.90-512,931.80

Finding the Fourth Proportional to 736,880.60, 1,105,320.90 and 512,931.80

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Solution

The fourth proportional to 736,880.60, 1,105,320.90 and 512,931.80 is: 769,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,880.60 : 1,105,320.90 = 512,931.80 : x
  2. Step 2: Convert to fraction form
    736,880.60/1,105,320.90 = 512,931.80/x
  3. Step 3: Cross multiply
    736,880.60x = 1,105,320.90 × 512,931.80
  4. Step 4: Simplify right side
    736,880.60x = 566,954,238,814.62
  5. Step 5: Solve for x
    x = 566,954,238,814.62/736,880.60
  6. Step 6: Final answer
    x = 769,397.70

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Double scale
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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.