Home / 879,549.58-1,213,152.70-807,186.16

Finding the Fourth Proportional to 879,549.58, 1,213,152.70 and 807,186.16

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Solution

The fourth proportional to 879,549.58, 1,213,152.70 and 807,186.16 is: 1,113,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,549.58 : 1,213,152.70 = 807,186.16 : x
  2. Step 2: Convert to fraction form
    879,549.58/1,213,152.70 = 807,186.16/x
  3. Step 3: Cross multiply
    879,549.58x = 1,213,152.70 × 807,186.16
  4. Step 4: Simplify right side
    879,549.58x = 979,240,069,406.63
  5. Step 5: Solve for x
    x = 979,240,069,406.63/879,549.58
  6. Step 6: Final answer
    x = 1,113,342.66

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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.