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Finding the Fourth Proportional to 707,329.46, 976,114.77 and 385,041.97

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Solution

The fourth proportional to 707,329.46, 976,114.77 and 385,041.97 is: 531,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,329.46 : 976,114.77 = 385,041.97 : x
  2. Step 2: Convert to fraction form
    707,329.46/976,114.77 = 385,041.97/x
  3. Step 3: Cross multiply
    707,329.46x = 976,114.77 × 385,041.97
  4. Step 4: Simplify right side
    707,329.46x = 375,845,153,763.13
  5. Step 5: Solve for x
    x = 375,845,153,763.13/707,329.46
  6. Step 6: Final answer
    x = 531,357.98

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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.