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Finding the Fourth Proportional to 677,441.13, 934,881.59 and 371,498.13

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Solution

The fourth proportional to 677,441.13, 934,881.59 and 371,498.13 is: 512,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,441.13 : 934,881.59 = 371,498.13 : x
  2. Step 2: Convert to fraction form
    677,441.13/934,881.59 = 371,498.13/x
  3. Step 3: Cross multiply
    677,441.13x = 934,881.59 × 371,498.13
  4. Step 4: Simplify right side
    677,441.13x = 347,306,760,598.94
  5. Step 5: Solve for x
    x = 347,306,760,598.94/677,441.13
  6. Step 6: Final answer
    x = 512,674.45

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Double scale
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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.