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Finding the Fourth Proportional to 520,972.80, 781,424.64 and 236,595.84

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Solution

The fourth proportional to 520,972.80, 781,424.64 and 236,595.84 is: 354,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,972.80 : 781,424.64 = 236,595.84 : x
  2. Step 2: Convert to fraction form
    520,972.80/781,424.64 = 236,595.84/x
  3. Step 3: Cross multiply
    520,972.80x = 781,424.64 × 236,595.84
  4. Step 4: Simplify right side
    520,972.80x = 184,881,819,097.50
  5. Step 5: Solve for x
    x = 184,881,819,097.50/520,972.80
  6. Step 6: Final answer
    x = 354,878.06

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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.