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Finding the Fourth Proportional to 557,303.16, 769,313.70 and 376,260.24

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Solution

The fourth proportional to 557,303.16, 769,313.70 and 376,260.24 is: 519,398.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,303.16 : 769,313.70 = 376,260.24 : x
  2. Step 2: Convert to fraction form
    557,303.16/769,313.70 = 376,260.24/x
  3. Step 3: Cross multiply
    557,303.16x = 769,313.70 × 376,260.24
  4. Step 4: Simplify right side
    557,303.16x = 289,462,157,397.29
  5. Step 5: Solve for x
    x = 289,462,157,397.29/557,303.16
  6. Step 6: Final answer
    x = 519,398.02

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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.