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Finding the Fourth Proportional to 507,012.50, 761,266.38 and 282,810.98

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Solution

The fourth proportional to 507,012.50, 761,266.38 and 282,810.98 is: 424,633.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,012.50 : 761,266.38 = 282,810.98 : x
  2. Step 2: Convert to fraction form
    507,012.50/761,266.38 = 282,810.98/x
  3. Step 3: Cross multiply
    507,012.50x = 761,266.38 × 282,810.98
  4. Step 4: Simplify right side
    507,012.50x = 215,294,490,968.85
  5. Step 5: Solve for x
    x = 215,294,490,968.85/507,012.50
  6. Step 6: Final answer
    x = 424,633.50

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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.