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Finding the Fourth Proportional to 528,063.40, 792,095.10 and 291,867.40

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Solution

The fourth proportional to 528,063.40, 792,095.10 and 291,867.40 is: 437,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,063.40 : 792,095.10 = 291,867.40 : x
  2. Step 2: Convert to fraction form
    528,063.40/792,095.10 = 291,867.40/x
  3. Step 3: Cross multiply
    528,063.40x = 792,095.10 × 291,867.40
  4. Step 4: Simplify right side
    528,063.40x = 231,186,737,389.74
  5. Step 5: Solve for x
    x = 231,186,737,389.74/528,063.40
  6. Step 6: Final answer
    x = 437,801.10

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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.