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Finding the Fourth Proportional to 613,280.85, 919,924.73 and 546,124.13

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Solution

The fourth proportional to 613,280.85, 919,924.73 and 546,124.13 is: 819,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,280.85 : 919,924.73 = 546,124.13 : x
  2. Step 2: Convert to fraction form
    613,280.85/919,924.73 = 546,124.13/x
  3. Step 3: Cross multiply
    613,280.85x = 919,924.73 × 546,124.13
  4. Step 4: Simplify right side
    613,280.85x = 502,393,085,506.49
  5. Step 5: Solve for x
    x = 502,393,085,506.49/613,280.85
  6. Step 6: Final answer
    x = 819,189.26

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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.