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Finding the Fourth Proportional to 688,564.55, 950,158.57 and 382,621.55

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Solution

The fourth proportional to 688,564.55, 950,158.57 and 382,621.55 is: 527,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,564.55 : 950,158.57 = 382,621.55 : x
  2. Step 2: Convert to fraction form
    688,564.55/950,158.57 = 382,621.55/x
  3. Step 3: Cross multiply
    688,564.55x = 950,158.57 × 382,621.55
  4. Step 4: Simplify right side
    688,564.55x = 363,551,139,091.84
  5. Step 5: Solve for x
    x = 363,551,139,091.84/688,564.55
  6. Step 6: Final answer
    x = 527,984.11

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1.5x scale

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.