Home / 879,388.14-1,213,583.13-497,407.26

Finding the Fourth Proportional to 879,388.14, 1,213,583.13 and 497,407.26

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Solution

The fourth proportional to 879,388.14, 1,213,583.13 and 497,407.26 is: 686,437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,388.14 : 1,213,583.13 = 497,407.26 : x
  2. Step 2: Convert to fraction form
    879,388.14/1,213,583.13 = 497,407.26/x
  3. Step 3: Cross multiply
    879,388.14x = 1,213,583.13 × 497,407.26
  4. Step 4: Simplify right side
    879,388.14x = 603,645,059,475.52
  5. Step 5: Solve for x
    x = 603,645,059,475.52/879,388.14
  6. Step 6: Final answer
    x = 686,437.57

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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.