Home / 936,311.10-1,402,090.65-515,111.10

Finding the Fourth Proportional to 936,311.10, 1,402,090.65 and 515,111.10

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Solution

The fourth proportional to 936,311.10, 1,402,090.65 and 515,111.10 is: 771,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,311.10 : 1,402,090.65 = 515,111.10 : x
  2. Step 2: Convert to fraction form
    936,311.10/1,402,090.65 = 515,111.10/x
  3. Step 3: Cross multiply
    936,311.10x = 1,402,090.65 × 515,111.10
  4. Step 4: Simplify right side
    936,311.10x = 722,232,457,021.22
  5. Step 5: Solve for x
    x = 722,232,457,021.22/936,311.10
  6. Step 6: Final answer
    x = 771,359.49

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Half scale
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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.