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Finding the Fourth Proportional to 521,395.58, 719,527.76 and 291,962.88

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Solution

The fourth proportional to 521,395.58, 719,527.76 and 291,962.88 is: 402,909.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,395.58 : 719,527.76 = 291,962.88 : x
  2. Step 2: Convert to fraction form
    521,395.58/719,527.76 = 291,962.88/x
  3. Step 3: Cross multiply
    521,395.58x = 719,527.76 × 291,962.88
  4. Step 4: Simplify right side
    521,395.58x = 210,075,396,684.60
  5. Step 5: Solve for x
    x = 210,075,396,684.60/521,395.58
  6. Step 6: Final answer
    x = 402,909.81

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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.