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Finding the Fourth Proportional to 651,805.90, 977,708.85 and 573,009.10

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Solution

The fourth proportional to 651,805.90, 977,708.85 and 573,009.10 is: 859,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,805.90 : 977,708.85 = 573,009.10 : x
  2. Step 2: Convert to fraction form
    651,805.90/977,708.85 = 573,009.10/x
  3. Step 3: Cross multiply
    651,805.90x = 977,708.85 × 573,009.10
  4. Step 4: Simplify right side
    651,805.90x = 560,236,068,200.54
  5. Step 5: Solve for x
    x = 560,236,068,200.54/651,805.90
  6. Step 6: Final answer
    x = 859,513.65

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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.