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Finding the Fourth Proportional to 573,323.80, 859,985.70 and 545,767.60

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Solution

The fourth proportional to 573,323.80, 859,985.70 and 545,767.60 is: 818,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,323.80 : 859,985.70 = 545,767.60 : x
  2. Step 2: Convert to fraction form
    573,323.80/859,985.70 = 545,767.60/x
  3. Step 3: Cross multiply
    573,323.80x = 859,985.70 × 545,767.60
  4. Step 4: Simplify right side
    573,323.80x = 469,352,331,523.32
  5. Step 5: Solve for x
    x = 469,352,331,523.32/573,323.80
  6. Step 6: Final answer
    x = 818,651.40

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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.