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Finding the Fourth Proportional to 440,388.32, 607,715.54 and 249,403.09

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Solution

The fourth proportional to 440,388.32, 607,715.54 and 249,403.09 is: 344,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,388.32 : 607,715.54 = 249,403.09 : x
  2. Step 2: Convert to fraction form
    440,388.32/607,715.54 = 249,403.09/x
  3. Step 3: Cross multiply
    440,388.32x = 607,715.54 × 249,403.09
  4. Step 4: Simplify right side
    440,388.32x = 151,566,130,478.44
  5. Step 5: Solve for x
    x = 151,566,130,478.44/440,388.32
  6. Step 6: Final answer
    x = 344,164.74

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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.