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Finding the Fourth Proportional to 707,632.04, 976,543.34 and 385,341.88

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Solution

The fourth proportional to 707,632.04, 976,543.34 and 385,341.88 is: 531,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,632.04 : 976,543.34 = 385,341.88 : x
  2. Step 2: Convert to fraction form
    707,632.04/976,543.34 = 385,341.88/x
  3. Step 3: Cross multiply
    707,632.04x = 976,543.34 × 385,341.88
  4. Step 4: Simplify right side
    707,632.04x = 376,303,048,914.11
  5. Step 5: Solve for x
    x = 376,303,048,914.11/707,632.04
  6. Step 6: Final answer
    x = 531,777.85

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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.