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Finding the Fourth Proportional to 517,935.36, 714,764.16 and 291,588.96

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Solution

The fourth proportional to 517,935.36, 714,764.16 and 291,588.96 is: 402,400.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,935.36 : 714,764.16 = 291,588.96 : x
  2. Step 2: Convert to fraction form
    517,935.36/714,764.16 = 291,588.96/x
  3. Step 3: Cross multiply
    517,935.36x = 714,764.16 × 291,588.96
  4. Step 4: Simplify right side
    517,935.36x = 208,417,338,059.67
  5. Step 5: Solve for x
    x = 208,417,338,059.67/517,935.36
  6. Step 6: Final answer
    x = 402,400.29

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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.