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Finding the Fourth Proportional to 539,017.80, 808,526.70 and 183,978.60

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Solution

The fourth proportional to 539,017.80, 808,526.70 and 183,978.60 is: 275,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,017.80 : 808,526.70 = 183,978.60 : x
  2. Step 2: Convert to fraction form
    539,017.80/808,526.70 = 183,978.60/x
  3. Step 3: Cross multiply
    539,017.80x = 808,526.70 × 183,978.60
  4. Step 4: Simplify right side
    539,017.80x = 148,751,610,328.62
  5. Step 5: Solve for x
    x = 148,751,610,328.62/539,017.80
  6. Step 6: Final answer
    x = 275,967.90

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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.