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Finding the Fourth Proportional to 440,388.45, 607,715.71 and 249,403.21

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Solution

The fourth proportional to 440,388.45, 607,715.71 and 249,403.21 is: 344,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,388.45 : 607,715.71 = 249,403.21 : x
  2. Step 2: Convert to fraction form
    440,388.45/607,715.71 = 249,403.21/x
  3. Step 3: Cross multiply
    440,388.45x = 607,715.71 × 249,403.21
  4. Step 4: Simplify right side
    440,388.45x = 151,566,248,841.43
  5. Step 5: Solve for x
    x = 151,566,248,841.43/440,388.45
  6. Step 6: Final answer
    x = 344,164.90

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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.