Home / 418,421.03-577,569.08-248,653.13

Finding the Fourth Proportional to 418,421.03, 577,569.08 and 248,653.13

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Solution

The fourth proportional to 418,421.03, 577,569.08 and 248,653.13 is: 343,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,421.03 : 577,569.08 = 248,653.13 : x
  2. Step 2: Convert to fraction form
    418,421.03/577,569.08 = 248,653.13/x
  3. Step 3: Cross multiply
    418,421.03x = 577,569.08 × 248,653.13
  4. Step 4: Simplify right side
    418,421.03x = 143,614,357,267.01
  5. Step 5: Solve for x
    x = 143,614,357,267.01/418,421.03
  6. Step 6: Final answer
    x = 343,229.30

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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.