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Finding the Fourth Proportional to 540,416.69, 745,762.09 and 295,390.52

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Solution

The fourth proportional to 540,416.69, 745,762.09 and 295,390.52 is: 407,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,416.69 : 745,762.09 = 295,390.52 : x
  2. Step 2: Convert to fraction form
    540,416.69/745,762.09 = 295,390.52/x
  3. Step 3: Cross multiply
    540,416.69x = 745,762.09 × 295,390.52
  4. Step 4: Simplify right side
    540,416.69x = 220,291,046,355.62
  5. Step 5: Solve for x
    x = 220,291,046,355.62/540,416.69
  6. Step 6: Final answer
    x = 407,631.84

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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.