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Finding the Fourth Proportional to 525,473.12, 785,330.40 and 383,617.12

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Solution

The fourth proportional to 525,473.12, 785,330.40 and 383,617.12 is: 573,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,473.12 : 785,330.40 = 383,617.12 : x
  2. Step 2: Convert to fraction form
    525,473.12/785,330.40 = 383,617.12/x
  3. Step 3: Cross multiply
    525,473.12x = 785,330.40 × 383,617.12
  4. Step 4: Simplify right side
    525,473.12x = 301,266,186,296.45
  5. Step 5: Solve for x
    x = 301,266,186,296.45/525,473.12
  6. Step 6: Final answer
    x = 573,323.69

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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.