Home / 779,935.84-1,076,333.53-440,455.12

Finding the Fourth Proportional to 779,935.84, 1,076,333.53 and 440,455.12

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Solution

The fourth proportional to 779,935.84, 1,076,333.53 and 440,455.12 is: 607,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,935.84 : 1,076,333.53 = 440,455.12 : x
  2. Step 2: Convert to fraction form
    779,935.84/1,076,333.53 = 440,455.12/x
  3. Step 3: Cross multiply
    779,935.84x = 1,076,333.53 × 440,455.12
  4. Step 4: Simplify right side
    779,935.84x = 474,076,608,734.51
  5. Step 5: Solve for x
    x = 474,076,608,734.51/779,935.84
  6. Step 6: Final answer
    x = 607,840.53

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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.