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Finding the Fourth Proportional to 564,561.76, 778,021.28 and 554,186.68

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Solution

The fourth proportional to 564,561.76, 778,021.28 and 554,186.68 is: 763,723.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,561.76 : 778,021.28 = 554,186.68 : x
  2. Step 2: Convert to fraction form
    564,561.76/778,021.28 = 554,186.68/x
  3. Step 3: Cross multiply
    564,561.76x = 778,021.28 × 554,186.68
  4. Step 4: Simplify right side
    564,561.76x = 431,169,030,132.55
  5. Step 5: Solve for x
    x = 431,169,030,132.55/564,561.76
  6. Step 6: Final answer
    x = 763,723.41

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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.