Home / 465,115.03-697,547.63-128,075.45

Finding the Fourth Proportional to 465,115.03, 697,547.63 and 128,075.45

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Solution

The fourth proportional to 465,115.03, 697,547.63 and 128,075.45 is: 192,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,115.03 : 697,547.63 = 128,075.45 : x
  2. Step 2: Convert to fraction form
    465,115.03/697,547.63 = 128,075.45/x
  3. Step 3: Cross multiply
    465,115.03x = 697,547.63 × 128,075.45
  4. Step 4: Simplify right side
    465,115.03x = 89,338,723,441.13
  5. Step 5: Solve for x
    x = 89,338,723,441.13/465,115.03
  6. Step 6: Final answer
    x = 192,078.77

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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.