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Finding the Fourth Proportional to 607,566.90, 911,350.35 and 572,574.90

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Solution

The fourth proportional to 607,566.90, 911,350.35 and 572,574.90 is: 858,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,566.90 : 911,350.35 = 572,574.90 : x
  2. Step 2: Convert to fraction form
    607,566.90/911,350.35 = 572,574.90/x
  3. Step 3: Cross multiply
    607,566.90x = 911,350.35 × 572,574.90
  4. Step 4: Simplify right side
    607,566.90x = 521,816,335,516.22
  5. Step 5: Solve for x
    x = 521,816,335,516.22/607,566.90
  6. Step 6: Final answer
    x = 858,862.35

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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.