Home / 930,257.40-1,395,386.10-256,337.40

Finding the Fourth Proportional to 930,257.40, 1,395,386.10 and 256,337.40

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Solution

The fourth proportional to 930,257.40, 1,395,386.10 and 256,337.40 is: 384,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,257.40 : 1,395,386.10 = 256,337.40 : x
  2. Step 2: Convert to fraction form
    930,257.40/1,395,386.10 = 256,337.40/x
  3. Step 3: Cross multiply
    930,257.40x = 1,395,386.10 × 256,337.40
  4. Step 4: Simplify right side
    930,257.40x = 357,689,644,870.14
  5. Step 5: Solve for x
    x = 357,689,644,870.14/930,257.40
  6. Step 6: Final answer
    x = 384,506.10

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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.