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Finding the Fourth Proportional to 460,622.76, 690,802.92 and 291,888.42

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Solution

The fourth proportional to 460,622.76, 690,802.92 and 291,888.42 is: 437,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,622.76 : 690,802.92 = 291,888.42 : x
  2. Step 2: Convert to fraction form
    460,622.76/690,802.92 = 291,888.42/x
  3. Step 3: Cross multiply
    460,622.76x = 690,802.92 × 291,888.42
  4. Step 4: Simplify right side
    460,622.76x = 201,637,372,850.19
  5. Step 5: Solve for x
    x = 201,637,372,850.19/460,622.76
  6. Step 6: Final answer
    x = 437,749.48

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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.