Home / 724,168.55-999,386.69-401,881.29

Finding the Fourth Proportional to 724,168.55, 999,386.69 and 401,881.29

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Solution

The fourth proportional to 724,168.55, 999,386.69 and 401,881.29 is: 554,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,168.55 : 999,386.69 = 401,881.29 : x
  2. Step 2: Convert to fraction form
    724,168.55/999,386.69 = 401,881.29/x
  3. Step 3: Cross multiply
    724,168.55x = 999,386.69 × 401,881.29
  4. Step 4: Simplify right side
    724,168.55x = 401,634,810,176.62
  5. Step 5: Solve for x
    x = 401,634,810,176.62/724,168.55
  6. Step 6: Final answer
    x = 554,615.10

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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.