Home / 450,519.77-621,718.93-243,788.16

Finding the Fourth Proportional to 450,519.77, 621,718.93 and 243,788.16

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Solution

The fourth proportional to 450,519.77, 621,718.93 and 243,788.16 is: 336,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,519.77 : 621,718.93 = 243,788.16 : x
  2. Step 2: Convert to fraction form
    450,519.77/621,718.93 = 243,788.16/x
  3. Step 3: Cross multiply
    450,519.77x = 621,718.93 × 243,788.16
  4. Step 4: Simplify right side
    450,519.77x = 151,567,712,762.93
  5. Step 5: Solve for x
    x = 151,567,712,762.93/450,519.77
  6. Step 6: Final answer
    x = 336,428.55

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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.