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Finding the Fourth Proportional to 592,512.55, 817,661.50 and 320,574.47

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Solution

The fourth proportional to 592,512.55, 817,661.50 and 320,574.47 is: 442,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,512.55 : 817,661.50 = 320,574.47 : x
  2. Step 2: Convert to fraction form
    592,512.55/817,661.50 = 320,574.47/x
  3. Step 3: Cross multiply
    592,512.55x = 817,661.50 × 320,574.47
  4. Step 4: Simplify right side
    592,512.55x = 262,121,402,001.91
  5. Step 5: Solve for x
    x = 262,121,402,001.91/592,512.55
  6. Step 6: Final answer
    x = 442,389.62

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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.