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Finding the Fourth Proportional to 607,066.20, 910,599.30 and 555,890.40

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Solution

The fourth proportional to 607,066.20, 910,599.30 and 555,890.40 is: 833,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,066.20 : 910,599.30 = 555,890.40 : x
  2. Step 2: Convert to fraction form
    607,066.20/910,599.30 = 555,890.40/x
  3. Step 3: Cross multiply
    607,066.20x = 910,599.30 × 555,890.40
  4. Step 4: Simplify right side
    607,066.20x = 506,193,409,116.72
  5. Step 5: Solve for x
    x = 506,193,409,116.72/607,066.20
  6. Step 6: Final answer
    x = 833,835.60

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Double scale
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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.