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Finding the Fourth Proportional to 371,117.48, 512,087.69 and 207,765.51

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Solution

The fourth proportional to 371,117.48, 512,087.69 and 207,765.51 is: 286,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,117.48 : 512,087.69 = 207,765.51 : x
  2. Step 2: Convert to fraction form
    371,117.48/512,087.69 = 207,765.51/x
  3. Step 3: Cross multiply
    371,117.48x = 512,087.69 × 207,765.51
  4. Step 4: Simplify right side
    371,117.48x = 106,394,159,038.74
  5. Step 5: Solve for x
    x = 106,394,159,038.74/371,117.48
  6. Step 6: Final answer
    x = 286,685.93

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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.