Home / 939,869.64-1,297,693.80-577,778.76

Finding the Fourth Proportional to 939,869.64, 1,297,693.80 and 577,778.76

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Solution

The fourth proportional to 939,869.64, 1,297,693.80 and 577,778.76 is: 797,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,869.64 : 1,297,693.80 = 577,778.76 : x
  2. Step 2: Convert to fraction form
    939,869.64/1,297,693.80 = 577,778.76/x
  3. Step 3: Cross multiply
    939,869.64x = 1,297,693.80 × 577,778.76
  4. Step 4: Simplify right side
    939,869.64x = 749,779,914,623.69
  5. Step 5: Solve for x
    x = 749,779,914,623.69/939,869.64
  6. Step 6: Final answer
    x = 797,748.84

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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.