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Finding the Fourth Proportional to 713,041.20, 1,069,561.80 and 573,073.20

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Solution

The fourth proportional to 713,041.20, 1,069,561.80 and 573,073.20 is: 859,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,041.20 : 1,069,561.80 = 573,073.20 : x
  2. Step 2: Convert to fraction form
    713,041.20/1,069,561.80 = 573,073.20/x
  3. Step 3: Cross multiply
    713,041.20x = 1,069,561.80 × 573,073.20
  4. Step 4: Simplify right side
    713,041.20x = 612,937,203,323.76
  5. Step 5: Solve for x
    x = 612,937,203,323.76/713,041.20
  6. Step 6: Final answer
    x = 859,609.80

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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.