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Finding the Fourth Proportional to 553,856.61, 830,784.92 and 174,806.85

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Solution

The fourth proportional to 553,856.61, 830,784.92 and 174,806.85 is: 262,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,856.61 : 830,784.92 = 174,806.85 : x
  2. Step 2: Convert to fraction form
    553,856.61/830,784.92 = 174,806.85/x
  3. Step 3: Cross multiply
    553,856.61x = 830,784.92 × 174,806.85
  4. Step 4: Simplify right side
    553,856.61x = 145,226,894,018.67
  5. Step 5: Solve for x
    x = 145,226,894,018.67/553,856.61
  6. Step 6: Final answer
    x = 262,210.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.