Home / 1,030,807.84-1,422,585.84-578,128

Finding the Fourth Proportional to 1,030,807.84, 1,422,585.84 and 578,128

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Solution

The fourth proportional to 1,030,807.84, 1,422,585.84 and 578,128 is: 797,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,807.84 : 1,422,585.84 = 578,128 : x
  2. Step 2: Convert to fraction form
    1,030,807.84/1,422,585.84 = 578,128/x
  3. Step 3: Cross multiply
    1,030,807.84x = 1,422,585.84 × 578,128
  4. Step 4: Simplify right side
    1,030,807.84x = 822,436,706,507.52
  5. Step 5: Solve for x
    x = 822,436,706,507.52/1,030,807.84
  6. Step 6: Final answer
    x = 797,856.47

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Double scale
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Similar ratio
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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.