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Finding the Fourth Proportional to 506,572.74, 699,001.92 and 288,809.51

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Solution

The fourth proportional to 506,572.74, 699,001.92 and 288,809.51 is: 398,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,572.74 : 699,001.92 = 288,809.51 : x
  2. Step 2: Convert to fraction form
    506,572.74/699,001.92 = 288,809.51/x
  3. Step 3: Cross multiply
    506,572.74x = 699,001.92 × 288,809.51
  4. Step 4: Simplify right side
    506,572.74x = 201,878,398,509.25
  5. Step 5: Solve for x
    x = 201,878,398,509.25/506,572.74
  6. Step 6: Final answer
    x = 398,518.09

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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.