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Finding the Fourth Proportional to 553,397.99, 764,041.77 and 451,666.14

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Solution

The fourth proportional to 553,397.99, 764,041.77 and 451,666.14 is: 623,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,397.99 : 764,041.77 = 451,666.14 : x
  2. Step 2: Convert to fraction form
    553,397.99/764,041.77 = 451,666.14/x
  3. Step 3: Cross multiply
    553,397.99x = 764,041.77 × 451,666.14
  4. Step 4: Simplify right side
    553,397.99x = 345,091,797,054.67
  5. Step 5: Solve for x
    x = 345,091,797,054.67/553,397.99
  6. Step 6: Final answer
    x = 623,587.01

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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.