Home / 1,247,762.21-1,871,643.65-349,336.31

Finding the Fourth Proportional to 1,247,762.21, 1,871,643.65 and 349,336.31

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Solution

The fourth proportional to 1,247,762.21, 1,871,643.65 and 349,336.31 is: 524,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,762.21 : 1,871,643.65 = 349,336.31 : x
  2. Step 2: Convert to fraction form
    1,247,762.21/1,871,643.65 = 349,336.31/x
  3. Step 3: Cross multiply
    1,247,762.21x = 1,871,643.65 × 349,336.31
  4. Step 4: Simplify right side
    1,247,762.21x = 653,833,075,221.03
  5. Step 5: Solve for x
    x = 653,833,075,221.03/1,247,762.21
  6. Step 6: Final answer
    x = 524,004.55

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.