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Finding the Fourth Proportional to 606,985.20, 910,477.80 and 583,657.20

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Solution

The fourth proportional to 606,985.20, 910,477.80 and 583,657.20 is: 875,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,985.20 : 910,477.80 = 583,657.20 : x
  2. Step 2: Convert to fraction form
    606,985.20/910,477.80 = 583,657.20/x
  3. Step 3: Cross multiply
    606,985.20x = 910,477.80 × 583,657.20
  4. Step 4: Simplify right side
    606,985.20x = 531,406,923,410.16
  5. Step 5: Solve for x
    x = 531,406,923,410.16/606,985.20
  6. Step 6: Final answer
    x = 875,485.80

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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.