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Finding the Fourth Proportional to 348,042.40, 520,897.20 and 348,042.40

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Solution

The fourth proportional to 348,042.40, 520,897.20 and 348,042.40 is: 520,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,042.40 : 520,897.20 = 348,042.40 : x
  2. Step 2: Convert to fraction form
    348,042.40/520,897.20 = 348,042.40/x
  3. Step 3: Cross multiply
    348,042.40x = 520,897.20 × 348,042.40
  4. Step 4: Simplify right side
    348,042.40x = 181,294,311,641.28
  5. Step 5: Solve for x
    x = 181,294,311,641.28/348,042.40
  6. Step 6: Final answer
    x = 520,897.20

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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.