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Finding the Fourth Proportional to 439,959.56, 606,830.45 and 403,777.58

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Solution

The fourth proportional to 439,959.56, 606,830.45 and 403,777.58 is: 556,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,959.56 : 606,830.45 = 403,777.58 : x
  2. Step 2: Convert to fraction form
    439,959.56/606,830.45 = 403,777.58/x
  3. Step 3: Cross multiply
    439,959.56x = 606,830.45 × 403,777.58
  4. Step 4: Simplify right side
    439,959.56x = 245,024,525,518.27
  5. Step 5: Solve for x
    x = 245,024,525,518.27/439,959.56
  6. Step 6: Final answer
    x = 556,925.11

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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.