Home / 583,643.18-805,290.46-354,195.34

Finding the Fourth Proportional to 583,643.18, 805,290.46 and 354,195.34

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Solution

The fourth proportional to 583,643.18, 805,290.46 and 354,195.34 is: 488,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,643.18 : 805,290.46 = 354,195.34 : x
  2. Step 2: Convert to fraction form
    583,643.18/805,290.46 = 354,195.34/x
  3. Step 3: Cross multiply
    583,643.18x = 805,290.46 × 354,195.34
  4. Step 4: Simplify right side
    583,643.18x = 285,230,128,278.46
  5. Step 5: Solve for x
    x = 285,230,128,278.46/583,643.18
  6. Step 6: Final answer
    x = 488,706.35

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Double scale
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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.