Home / 736,280.40-1,104,420.60-512,331.60

Finding the Fourth Proportional to 736,280.40, 1,104,420.60 and 512,331.60

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Solution

The fourth proportional to 736,280.40, 1,104,420.60 and 512,331.60 is: 768,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,280.40 : 1,104,420.60 = 512,331.60 : x
  2. Step 2: Convert to fraction form
    736,280.40/1,104,420.60 = 512,331.60/x
  3. Step 3: Cross multiply
    736,280.40x = 1,104,420.60 × 512,331.60
  4. Step 4: Simplify right side
    736,280.40x = 565,829,573,070.96
  5. Step 5: Solve for x
    x = 565,829,573,070.96/736,280.40
  6. Step 6: Final answer
    x = 768,497.40

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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.