Home / 677,533.68-934,929.06-391,146.02

Finding the Fourth Proportional to 677,533.68, 934,929.06 and 391,146.02

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Solution

The fourth proportional to 677,533.68, 934,929.06 and 391,146.02 is: 539,742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,533.68 : 934,929.06 = 391,146.02 : x
  2. Step 2: Convert to fraction form
    677,533.68/934,929.06 = 391,146.02/x
  3. Step 3: Cross multiply
    677,533.68x = 934,929.06 × 391,146.02
  4. Step 4: Simplify right side
    677,533.68x = 365,693,780,801.34
  5. Step 5: Solve for x
    x = 365,693,780,801.34/677,533.68
  6. Step 6: Final answer
    x = 539,742.59

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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.