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Finding the Fourth Proportional to 545,000.17, 817,623.27 and 165,954.80

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Solution

The fourth proportional to 545,000.17, 817,623.27 and 165,954.80 is: 248,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,000.17 : 817,623.27 = 165,954.80 : x
  2. Step 2: Convert to fraction form
    545,000.17/817,623.27 = 165,954.80/x
  3. Step 3: Cross multiply
    545,000.17x = 817,623.27 × 165,954.80
  4. Step 4: Simplify right side
    545,000.17x = 135,688,506,248.20
  5. Step 5: Solve for x
    x = 135,688,506,248.20/545,000.17
  6. Step 6: Final answer
    x = 248,969.66

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1.5x scale

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.