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Finding the Fourth Proportional to 526,737.30, 789,587.55 and 260,538.90

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Solution

The fourth proportional to 526,737.30, 789,587.55 and 260,538.90 is: 390,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,737.30 : 789,587.55 = 260,538.90 : x
  2. Step 2: Convert to fraction form
    526,737.30/789,587.55 = 260,538.90/x
  3. Step 3: Cross multiply
    526,737.30x = 789,587.55 × 260,538.90
  4. Step 4: Simplify right side
    526,737.30x = 205,718,271,730.70
  5. Step 5: Solve for x
    x = 205,718,271,730.70/526,737.30
  6. Step 6: Final answer
    x = 390,551.93

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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.