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Finding the Fourth Proportional to 651,200.40, 976,800.60 and 586,918.80

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Solution

The fourth proportional to 651,200.40, 976,800.60 and 586,918.80 is: 880,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,200.40 : 976,800.60 = 586,918.80 : x
  2. Step 2: Convert to fraction form
    651,200.40/976,800.60 = 586,918.80/x
  3. Step 3: Cross multiply
    651,200.40x = 976,800.60 × 586,918.80
  4. Step 4: Simplify right side
    651,200.40x = 573,302,635,991.28
  5. Step 5: Solve for x
    x = 573,302,635,991.28/651,200.40
  6. Step 6: Final answer
    x = 880,378.20

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Half scale
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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.