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Finding the Fourth Proportional to 368,611.52, 508,710.56 and 207,482.72

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Solution

The fourth proportional to 368,611.52, 508,710.56 and 207,482.72 is: 286,341.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,611.52 : 508,710.56 = 207,482.72 : x
  2. Step 2: Convert to fraction form
    368,611.52/508,710.56 = 207,482.72/x
  3. Step 3: Cross multiply
    368,611.52x = 508,710.56 × 207,482.72
  4. Step 4: Simplify right side
    368,611.52x = 105,548,650,681.52
  5. Step 5: Solve for x
    x = 105,548,650,681.52/368,611.52
  6. Step 6: Final answer
    x = 286,341.16

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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.