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Finding the Fourth Proportional to 539,611.01, 744,643.63 and 297,888.38

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Solution

The fourth proportional to 539,611.01, 744,643.63 and 297,888.38 is: 411,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,611.01 : 744,643.63 = 297,888.38 : x
  2. Step 2: Convert to fraction form
    539,611.01/744,643.63 = 297,888.38/x
  3. Step 3: Cross multiply
    539,611.01x = 744,643.63 × 297,888.38
  4. Step 4: Simplify right side
    539,611.01x = 221,820,684,618.02
  5. Step 5: Solve for x
    x = 221,820,684,618.02/539,611.01
  6. Step 6: Final answer
    x = 411,075.16

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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.