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Finding the Fourth Proportional to 606,645.80, 909,968.70 and 561,026.60

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Solution

The fourth proportional to 606,645.80, 909,968.70 and 561,026.60 is: 841,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,645.80 : 909,968.70 = 561,026.60 : x
  2. Step 2: Convert to fraction form
    606,645.80/909,968.70 = 561,026.60/x
  3. Step 3: Cross multiply
    606,645.80x = 909,968.70 × 561,026.60
  4. Step 4: Simplify right side
    606,645.80x = 510,516,645,867.42
  5. Step 5: Solve for x
    x = 510,516,645,867.42/606,645.80
  6. Step 6: Final answer
    x = 841,539.90

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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.