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Finding the Fourth Proportional to 443,484.59, 665,700.51 and 190,890.19

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Solution

The fourth proportional to 443,484.59, 665,700.51 and 190,890.19 is: 286,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,484.59 : 665,700.51 = 190,890.19 : x
  2. Step 2: Convert to fraction form
    443,484.59/665,700.51 = 190,890.19/x
  3. Step 3: Cross multiply
    443,484.59x = 665,700.51 × 190,890.19
  4. Step 4: Simplify right side
    443,484.59x = 127,075,696,837.00
  5. Step 5: Solve for x
    x = 127,075,696,837.00/443,484.59
  6. Step 6: Final answer
    x = 286,539.15

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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.