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Finding the Fourth Proportional to 572,532.80, 858,799.20 and 493,800.80

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Solution

The fourth proportional to 572,532.80, 858,799.20 and 493,800.80 is: 740,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,532.80 : 858,799.20 = 493,800.80 : x
  2. Step 2: Convert to fraction form
    572,532.80/858,799.20 = 493,800.80/x
  3. Step 3: Cross multiply
    572,532.80x = 858,799.20 × 493,800.80
  4. Step 4: Simplify right side
    572,532.80x = 424,075,731,999.36
  5. Step 5: Solve for x
    x = 424,075,731,999.36/572,532.80
  6. Step 6: Final answer
    x = 740,701.20

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Half scale
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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.