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Finding the Fourth Proportional to 614,391.08, 921,712.06 and 348,270.44

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Solution

The fourth proportional to 614,391.08, 921,712.06 and 348,270.44 is: 522,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,391.08 : 921,712.06 = 348,270.44 : x
  2. Step 2: Convert to fraction form
    614,391.08/921,712.06 = 348,270.44/x
  3. Step 3: Cross multiply
    614,391.08x = 921,712.06 × 348,270.44
  4. Step 4: Simplify right side
    614,391.08x = 321,005,064,689.51
  5. Step 5: Solve for x
    x = 321,005,064,689.51/614,391.08
  6. Step 6: Final answer
    x = 522,476.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.