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Finding the Fourth Proportional to 586,052.60, 879,078.90 and 397,095.80

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Solution

The fourth proportional to 586,052.60, 879,078.90 and 397,095.80 is: 595,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,052.60 : 879,078.90 = 397,095.80 : x
  2. Step 2: Convert to fraction form
    586,052.60/879,078.90 = 397,095.80/x
  3. Step 3: Cross multiply
    586,052.60x = 879,078.90 × 397,095.80
  4. Step 4: Simplify right side
    586,052.60x = 349,078,539,058.62
  5. Step 5: Solve for x
    x = 349,078,539,058.62/586,052.60
  6. Step 6: Final answer
    x = 595,643.70

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Similar ratio
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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.