Home / 879,531.12-1,213,757.46-497,549.88

Finding the Fourth Proportional to 879,531.12, 1,213,757.46 and 497,549.88

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Solution

The fourth proportional to 879,531.12, 1,213,757.46 and 497,549.88 is: 686,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,531.12 : 1,213,757.46 = 497,549.88 : x
  2. Step 2: Convert to fraction form
    879,531.12/1,213,757.46 = 497,549.88/x
  3. Step 3: Cross multiply
    879,531.12x = 1,213,757.46 × 497,549.88
  4. Step 4: Simplify right side
    879,531.12x = 603,904,878,572.11
  5. Step 5: Solve for x
    x = 603,904,878,572.11/879,531.12
  6. Step 6: Final answer
    x = 686,621.39

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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.