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Finding the Fourth Proportional to 764,602, 1,055,151.98 and 425,070.25

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Solution

The fourth proportional to 764,602, 1,055,151.98 and 425,070.25 is: 586,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,602 : 1,055,151.98 = 425,070.25 : x
  2. Step 2: Convert to fraction form
    764,602/1,055,151.98 = 425,070.25/x
  3. Step 3: Cross multiply
    764,602x = 1,055,151.98 × 425,070.25
  4. Step 4: Simplify right side
    764,602x = 448,513,715,926.60
  5. Step 5: Solve for x
    x = 448,513,715,926.60/764,602
  6. Step 6: Final answer
    x = 586,597.62

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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.