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Finding the Fourth Proportional to 611,602.80, 917,404.20 and 582,078.30

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Solution

The fourth proportional to 611,602.80, 917,404.20 and 582,078.30 is: 873,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,602.80 : 917,404.20 = 582,078.30 : x
  2. Step 2: Convert to fraction form
    611,602.80/917,404.20 = 582,078.30/x
  3. Step 3: Cross multiply
    611,602.80x = 917,404.20 × 582,078.30
  4. Step 4: Simplify right side
    611,602.80x = 534,001,077,148.86
  5. Step 5: Solve for x
    x = 534,001,077,148.86/611,602.80
  6. Step 6: Final answer
    x = 873,117.45

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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.