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Finding the Fourth Proportional to 528,026.90, 792,040.35 and 291,830.90

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Solution

The fourth proportional to 528,026.90, 792,040.35 and 291,830.90 is: 437,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,026.90 : 792,040.35 = 291,830.90 : x
  2. Step 2: Convert to fraction form
    528,026.90/792,040.35 = 291,830.90/x
  3. Step 3: Cross multiply
    528,026.90x = 792,040.35 × 291,830.90
  4. Step 4: Simplify right side
    528,026.90x = 231,141,848,176.82
  5. Step 5: Solve for x
    x = 231,141,848,176.82/528,026.90
  6. Step 6: Final answer
    x = 437,746.35

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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.