Home / 779,969.54-1,076,365.08-457,685.01

Finding the Fourth Proportional to 779,969.54, 1,076,365.08 and 457,685.01

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Solution

The fourth proportional to 779,969.54, 1,076,365.08 and 457,685.01 is: 631,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,969.54 : 1,076,365.08 = 457,685.01 : x
  2. Step 2: Convert to fraction form
    779,969.54/1,076,365.08 = 457,685.01/x
  3. Step 3: Cross multiply
    779,969.54x = 1,076,365.08 × 457,685.01
  4. Step 4: Simplify right side
    779,969.54x = 492,636,162,403.45
  5. Step 5: Solve for x
    x = 492,636,162,403.45/779,969.54
  6. Step 6: Final answer
    x = 631,609.49

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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.