Home / 830,857.86-1,145,240.64-649,254.24

Finding the Fourth Proportional to 830,857.86, 1,145,240.64 and 649,254.24

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Solution

The fourth proportional to 830,857.86, 1,145,240.64 and 649,254.24 is: 894,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,857.86 : 1,145,240.64 = 649,254.24 : x
  2. Step 2: Convert to fraction form
    830,857.86/1,145,240.64 = 649,254.24/x
  3. Step 3: Cross multiply
    830,857.86x = 1,145,240.64 × 649,254.24
  4. Step 4: Simplify right side
    830,857.86x = 743,552,341,340.31
  5. Step 5: Solve for x
    x = 743,552,341,340.31/830,857.86
  6. Step 6: Final answer
    x = 894,921.23

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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.