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Finding the Fourth Proportional to 940,810.88, 1,298,328 and 511,094.24

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Solution

The fourth proportional to 940,810.88, 1,298,328 and 511,094.24 is: 705,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,810.88 : 1,298,328 = 511,094.24 : x
  2. Step 2: Convert to fraction form
    940,810.88/1,298,328 = 511,094.24/x
  3. Step 3: Cross multiply
    940,810.88x = 1,298,328 × 511,094.24
  4. Step 4: Simplify right side
    940,810.88x = 663,567,962,430.72
  5. Step 5: Solve for x
    x = 663,567,962,430.72/940,810.88
  6. Step 6: Final answer
    x = 705,314.93

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Double scale
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1.5x scale

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.