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Finding the Fourth Proportional to 522,042.10, 781,313.55 and 522,042.10

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Solution

The fourth proportional to 522,042.10, 781,313.55 and 522,042.10 is: 781,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,042.10 : 781,313.55 = 522,042.10 : x
  2. Step 2: Convert to fraction form
    522,042.10/781,313.55 = 522,042.10/x
  3. Step 3: Cross multiply
    522,042.10x = 781,313.55 × 522,042.10
  4. Step 4: Simplify right side
    522,042.10x = 407,878,566,400.46
  5. Step 5: Solve for x
    x = 407,878,566,400.46/522,042.10
  6. Step 6: Final answer
    x = 781,313.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.