Home / 777,867.60-1,073,075.68-519,807.92

Finding the Fourth Proportional to 777,867.60, 1,073,075.68 and 519,807.92

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Solution

The fourth proportional to 777,867.60, 1,073,075.68 and 519,807.92 is: 717,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,867.60 : 1,073,075.68 = 519,807.92 : x
  2. Step 2: Convert to fraction form
    777,867.60/1,073,075.68 = 519,807.92/x
  3. Step 3: Cross multiply
    777,867.60x = 1,073,075.68 × 519,807.92
  4. Step 4: Simplify right side
    777,867.60x = 557,793,232,507.77
  5. Step 5: Solve for x
    x = 557,793,232,507.77/777,867.60
  6. Step 6: Final answer
    x = 717,079.91

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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.