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Finding the Fourth Proportional to 540,417.69, 745,763.46 and 295,391.52

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Solution

The fourth proportional to 540,417.69, 745,763.46 and 295,391.52 is: 407,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,417.69 : 745,763.46 = 295,391.52 : x
  2. Step 2: Convert to fraction form
    540,417.69/745,763.46 = 295,391.52/x
  3. Step 3: Cross multiply
    540,417.69x = 745,763.46 × 295,391.52
  4. Step 4: Simplify right side
    540,417.69x = 220,292,202,009.86
  5. Step 5: Solve for x
    x = 220,292,202,009.86/540,417.69
  6. Step 6: Final answer
    x = 407,633.22

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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.