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Finding the Fourth Proportional to 569,381.20, 785,712.28 and 314,717.20

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Solution

The fourth proportional to 569,381.20, 785,712.28 and 314,717.20 is: 434,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,381.20 : 785,712.28 = 314,717.20 : x
  2. Step 2: Convert to fraction form
    569,381.20/785,712.28 = 314,717.20/x
  3. Step 3: Cross multiply
    569,381.20x = 785,712.28 × 314,717.20
  4. Step 4: Simplify right side
    569,381.20x = 247,277,168,767.22
  5. Step 5: Solve for x
    x = 247,277,168,767.22/569,381.20
  6. Step 6: Final answer
    x = 434,291.07

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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.