Home / 985,142.95-1,477,714.42-453,111.46

Finding the Fourth Proportional to 985,142.95, 1,477,714.42 and 453,111.46

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Solution

The fourth proportional to 985,142.95, 1,477,714.42 and 453,111.46 is: 679,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,142.95 : 1,477,714.42 = 453,111.46 : x
  2. Step 2: Convert to fraction form
    985,142.95/1,477,714.42 = 453,111.46/x
  3. Step 3: Cross multiply
    985,142.95x = 1,477,714.42 × 453,111.46
  4. Step 4: Simplify right side
    985,142.95x = 669,569,338,309.25
  5. Step 5: Solve for x
    x = 669,569,338,309.25/985,142.95
  6. Step 6: Final answer
    x = 679,667.19

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Double scale
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Similar ratio
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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.