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Finding the Fourth Proportional to 387,207.77, 534,423.22 and 247,417.01

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Solution

The fourth proportional to 387,207.77, 534,423.22 and 247,417.01 is: 341,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,207.77 : 534,423.22 = 247,417.01 : x
  2. Step 2: Convert to fraction form
    387,207.77/534,423.22 = 247,417.01/x
  3. Step 3: Cross multiply
    387,207.77x = 534,423.22 × 247,417.01
  4. Step 4: Simplify right side
    387,207.77x = 132,225,392,377.34
  5. Step 5: Solve for x
    x = 132,225,392,377.34/387,207.77
  6. Step 6: Final answer
    x = 341,484.35

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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.