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Finding the Fourth Proportional to 607,566.40, 911,349.60 and 572,574.40

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Solution

The fourth proportional to 607,566.40, 911,349.60 and 572,574.40 is: 858,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,566.40 : 911,349.60 = 572,574.40 : x
  2. Step 2: Convert to fraction form
    607,566.40/911,349.60 = 572,574.40/x
  3. Step 3: Cross multiply
    607,566.40x = 911,349.60 × 572,574.40
  4. Step 4: Simplify right side
    607,566.40x = 521,815,450,410.24
  5. Step 5: Solve for x
    x = 521,815,450,410.24/607,566.40
  6. Step 6: Final answer
    x = 858,861.60

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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.