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Finding the Fourth Proportional to 368,636.66, 508,616.78 and 207,482.30

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Solution

The fourth proportional to 368,636.66, 508,616.78 and 207,482.30 is: 286,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,636.66 : 508,616.78 = 207,482.30 : x
  2. Step 2: Convert to fraction form
    368,636.66/508,616.78 = 207,482.30/x
  3. Step 3: Cross multiply
    368,636.66x = 508,616.78 × 207,482.30
  4. Step 4: Simplify right side
    368,636.66x = 105,528,979,332.99
  5. Step 5: Solve for x
    x = 105,528,979,332.99/368,636.66
  6. Step 6: Final answer
    x = 286,268.27

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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.