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Finding the Fourth Proportional to 584,085.60, 876,128.40 and 406,792.80

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Solution

The fourth proportional to 584,085.60, 876,128.40 and 406,792.80 is: 610,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,085.60 : 876,128.40 = 406,792.80 : x
  2. Step 2: Convert to fraction form
    584,085.60/876,128.40 = 406,792.80/x
  3. Step 3: Cross multiply
    584,085.60x = 876,128.40 × 406,792.80
  4. Step 4: Simplify right side
    584,085.60x = 356,402,724,995.52
  5. Step 5: Solve for x
    x = 356,402,724,995.52/584,085.60
  6. Step 6: Final answer
    x = 610,189.20

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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.