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Finding the Fourth Proportional to 714,279.36, 985,851.36 and 412,432.32

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Solution

The fourth proportional to 714,279.36, 985,851.36 and 412,432.32 is: 569,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,279.36 : 985,851.36 = 412,432.32 : x
  2. Step 2: Convert to fraction form
    714,279.36/985,851.36 = 412,432.32/x
  3. Step 3: Cross multiply
    714,279.36x = 985,851.36 × 412,432.32
  4. Step 4: Simplify right side
    714,279.36x = 406,596,963,579.96
  5. Step 5: Solve for x
    x = 406,596,963,579.96/714,279.36
  6. Step 6: Final answer
    x = 569,240.81

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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.