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Finding the Fourth Proportional to 583,641.18, 805,287.70 and 354,193.34

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Solution

The fourth proportional to 583,641.18, 805,287.70 and 354,193.34 is: 488,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,641.18 : 805,287.70 = 354,193.34 : x
  2. Step 2: Convert to fraction form
    583,641.18/805,287.70 = 354,193.34/x
  3. Step 3: Cross multiply
    583,641.18x = 805,287.70 × 354,193.34
  4. Step 4: Simplify right side
    583,641.18x = 285,227,540,123.92
  5. Step 5: Solve for x
    x = 285,227,540,123.92/583,641.18
  6. Step 6: Final answer
    x = 488,703.59

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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.