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Finding the Fourth Proportional to 460,381.51, 690,570.73 and 207,365.83

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Solution

The fourth proportional to 460,381.51, 690,570.73 and 207,365.83 is: 311,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,381.51 : 690,570.73 = 207,365.83 : x
  2. Step 2: Convert to fraction form
    460,381.51/690,570.73 = 207,365.83/x
  3. Step 3: Cross multiply
    460,381.51x = 690,570.73 × 207,365.83
  4. Step 4: Simplify right side
    460,381.51x = 143,200,772,600.16
  5. Step 5: Solve for x
    x = 143,200,772,600.16/460,381.51
  6. Step 6: Final answer
    x = 311,048.05

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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.