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Finding the Fourth Proportional to 858,338.88, 1,184,492.88 and 476,381.76

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Solution

The fourth proportional to 858,338.88, 1,184,492.88 and 476,381.76 is: 657,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,338.88 : 1,184,492.88 = 476,381.76 : x
  2. Step 2: Convert to fraction form
    858,338.88/1,184,492.88 = 476,381.76/x
  3. Step 3: Cross multiply
    858,338.88x = 1,184,492.88 × 476,381.76
  4. Step 4: Simplify right side
    858,338.88x = 564,270,802,881.87
  5. Step 5: Solve for x
    x = 564,270,802,881.87/858,338.88
  6. Step 6: Final answer
    x = 657,398.63

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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.