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Finding the Fourth Proportional to 501,661.10, 692,095.24 and 286,685.84

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Solution

The fourth proportional to 501,661.10, 692,095.24 and 286,685.84 is: 395,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,661.10 : 692,095.24 = 286,685.84 : x
  2. Step 2: Convert to fraction form
    501,661.10/692,095.24 = 286,685.84/x
  3. Step 3: Cross multiply
    501,661.10x = 692,095.24 × 286,685.84
  4. Step 4: Simplify right side
    501,661.10x = 198,413,900,345.50
  5. Step 5: Solve for x
    x = 198,413,900,345.50/501,661.10
  6. Step 6: Final answer
    x = 395,513.82

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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.