Home / 910,400.10-1,365,600.15-611,801.70

Finding the Fourth Proportional to 910,400.10, 1,365,600.15 and 611,801.70

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Solution

The fourth proportional to 910,400.10, 1,365,600.15 and 611,801.70 is: 917,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,400.10 : 1,365,600.15 = 611,801.70 : x
  2. Step 2: Convert to fraction form
    910,400.10/1,365,600.15 = 611,801.70/x
  3. Step 3: Cross multiply
    910,400.10x = 1,365,600.15 × 611,801.70
  4. Step 4: Simplify right side
    910,400.10x = 835,476,493,290.26
  5. Step 5: Solve for x
    x = 835,476,493,290.26/910,400.10
  6. Step 6: Final answer
    x = 917,702.55

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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.