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Finding the Fourth Proportional to 527,521.48, 791,280.30 and 290,739.40

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Solution

The fourth proportional to 527,521.48, 791,280.30 and 290,739.40 is: 436,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,521.48 : 791,280.30 = 290,739.40 : x
  2. Step 2: Convert to fraction form
    527,521.48/791,280.30 = 290,739.40/x
  3. Step 3: Cross multiply
    527,521.48x = 791,280.30 × 290,739.40
  4. Step 4: Simplify right side
    527,521.48x = 230,056,359,653.82
  5. Step 5: Solve for x
    x = 230,056,359,653.82/527,521.48
  6. Step 6: Final answer
    x = 436,108.04

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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.