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Finding the Fourth Proportional to 348,039.99, 480,151.74 and 212,024.31

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Solution

The fourth proportional to 348,039.99, 480,151.74 and 212,024.31 is: 292,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,039.99 : 480,151.74 = 212,024.31 : x
  2. Step 2: Convert to fraction form
    348,039.99/480,151.74 = 212,024.31/x
  3. Step 3: Cross multiply
    348,039.99x = 480,151.74 × 212,024.31
  4. Step 4: Simplify right side
    348,039.99x = 101,803,841,368.80
  5. Step 5: Solve for x
    x = 101,803,841,368.80/348,039.99
  6. Step 6: Final answer
    x = 292,506.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.