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Finding the Fourth Proportional to 528,042.90, 792,064.35 and 291,846.90

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Solution

The fourth proportional to 528,042.90, 792,064.35 and 291,846.90 is: 437,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,042.90 : 792,064.35 = 291,846.90 : x
  2. Step 2: Convert to fraction form
    528,042.90/792,064.35 = 291,846.90/x
  3. Step 3: Cross multiply
    528,042.90x = 792,064.35 × 291,846.90
  4. Step 4: Simplify right side
    528,042.90x = 231,161,525,148.02
  5. Step 5: Solve for x
    x = 231,161,525,148.02/528,042.90
  6. Step 6: Final answer
    x = 437,770.35

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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.