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Finding the Fourth Proportional to 707,544.12, 976,402.38 and 385,254.12

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Solution

The fourth proportional to 707,544.12, 976,402.38 and 385,254.12 is: 531,646.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,544.12 : 976,402.38 = 385,254.12 : x
  2. Step 2: Convert to fraction form
    707,544.12/976,402.38 = 385,254.12/x
  3. Step 3: Cross multiply
    707,544.12x = 976,402.38 × 385,254.12
  4. Step 4: Simplify right side
    707,544.12x = 376,163,039,672.81
  5. Step 5: Solve for x
    x = 376,163,039,672.81/707,544.12
  6. Step 6: Final answer
    x = 531,646.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.