Home / 1,641,588.48-2,265,157.80-916,420.28

Finding the Fourth Proportional to 1,641,588.48, 2,265,157.80 and 916,420.28

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Solution

The fourth proportional to 1,641,588.48, 2,265,157.80 and 916,420.28 is: 1,264,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,588.48 : 2,265,157.80 = 916,420.28 : x
  2. Step 2: Convert to fraction form
    1,641,588.48/2,265,157.80 = 916,420.28/x
  3. Step 3: Cross multiply
    1,641,588.48x = 2,265,157.80 × 916,420.28
  4. Step 4: Simplify right side
    1,641,588.48x = 2,075,836,533,994.39
  5. Step 5: Solve for x
    x = 2,075,836,533,994.39/1,641,588.48
  6. Step 6: Final answer
    x = 1,264,529.18

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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.