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Finding the Fourth Proportional to 611,122.48, 915,355.32 and 373,747.12

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Solution

The fourth proportional to 611,122.48, 915,355.32 and 373,747.12 is: 559,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,122.48 : 915,355.32 = 373,747.12 : x
  2. Step 2: Convert to fraction form
    611,122.48/915,355.32 = 373,747.12/x
  3. Step 3: Cross multiply
    611,122.48x = 915,355.32 × 373,747.12
  4. Step 4: Simplify right side
    611,122.48x = 342,111,414,626.68
  5. Step 5: Solve for x
    x = 342,111,414,626.68/611,122.48
  6. Step 6: Final answer
    x = 559,808.26

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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.