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Finding the Fourth Proportional to 368,482.37, 508,499.78 and 207,337.32

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Solution

The fourth proportional to 368,482.37, 508,499.78 and 207,337.32 is: 286,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,482.37 : 508,499.78 = 207,337.32 : x
  2. Step 2: Convert to fraction form
    368,482.37/508,499.78 = 207,337.32/x
  3. Step 3: Cross multiply
    368,482.37x = 508,499.78 × 207,337.32
  4. Step 4: Simplify right side
    368,482.37x = 105,430,980,569.10
  5. Step 5: Solve for x
    x = 105,430,980,569.10/368,482.37
  6. Step 6: Final answer
    x = 286,122.19

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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.