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Finding the Fourth Proportional to 578,591.79, 864,368.92 and 374,525.45

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Solution

The fourth proportional to 578,591.79, 864,368.92 and 374,525.45 is: 559,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,591.79 : 864,368.92 = 374,525.45 : x
  2. Step 2: Convert to fraction form
    578,591.79/864,368.92 = 374,525.45/x
  3. Step 3: Cross multiply
    578,591.79x = 864,368.92 × 374,525.45
  4. Step 4: Simplify right side
    578,591.79x = 323,728,158,729.01
  5. Step 5: Solve for x
    x = 323,728,158,729.01/578,591.79
  6. Step 6: Final answer
    x = 559,510.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.