Home / 761,618.58-1,142,666.64-458,343.60

Finding the Fourth Proportional to 761,618.58, 1,142,666.64 and 458,343.60

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Solution

The fourth proportional to 761,618.58, 1,142,666.64 and 458,343.60 is: 687,659.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,618.58 : 1,142,666.64 = 458,343.60 : x
  2. Step 2: Convert to fraction form
    761,618.58/1,142,666.64 = 458,343.60/x
  3. Step 3: Cross multiply
    761,618.58x = 1,142,666.64 × 458,343.60
  4. Step 4: Simplify right side
    761,618.58x = 523,733,941,377.50
  5. Step 5: Solve for x
    x = 523,733,941,377.50/761,618.58
  6. Step 6: Final answer
    x = 687,659.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.