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Finding the Fourth Proportional to 523,063.88, 720,453.18 and 401,973.32

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Solution

The fourth proportional to 523,063.88, 720,453.18 and 401,973.32 is: 553,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,063.88 : 720,453.18 = 401,973.32 : x
  2. Step 2: Convert to fraction form
    523,063.88/720,453.18 = 401,973.32/x
  3. Step 3: Cross multiply
    523,063.88x = 720,453.18 × 401,973.32
  4. Step 4: Simplify right side
    523,063.88x = 289,602,956,669.16
  5. Step 5: Solve for x
    x = 289,602,956,669.16/523,063.88
  6. Step 6: Final answer
    x = 553,666.52

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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.