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Finding the Fourth Proportional to 562,359.61, 775,565.62 and 398,692.77

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Solution

The fourth proportional to 562,359.61, 775,565.62 and 398,692.77 is: 549,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,359.61 : 775,565.62 = 398,692.77 : x
  2. Step 2: Convert to fraction form
    562,359.61/775,565.62 = 398,692.77/x
  3. Step 3: Cross multiply
    562,359.61x = 775,565.62 × 398,692.77
  4. Step 4: Simplify right side
    562,359.61x = 309,212,405,354.57
  5. Step 5: Solve for x
    x = 309,212,405,354.57/562,359.61
  6. Step 6: Final answer
    x = 549,848.18

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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.