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Finding the Fourth Proportional to 592,840.47, 818,120.34 and 320,907.53

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Solution

The fourth proportional to 592,840.47, 818,120.34 and 320,907.53 is: 442,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,840.47 : 818,120.34 = 320,907.53 : x
  2. Step 2: Convert to fraction form
    592,840.47/818,120.34 = 320,907.53/x
  3. Step 3: Cross multiply
    592,840.47x = 818,120.34 × 320,907.53
  4. Step 4: Simplify right side
    592,840.47x = 262,540,979,597.46
  5. Step 5: Solve for x
    x = 262,540,979,597.46/592,840.47
  6. Step 6: Final answer
    x = 442,852.66

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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.