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Finding the Fourth Proportional to 316,333.30, 476,700.54 and 286,356.67

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Solution

The fourth proportional to 316,333.30, 476,700.54 and 286,356.67 is: 431,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,333.30 : 476,700.54 = 286,356.67 : x
  2. Step 2: Convert to fraction form
    316,333.30/476,700.54 = 286,356.67/x
  3. Step 3: Cross multiply
    316,333.30x = 476,700.54 × 286,356.67
  4. Step 4: Simplify right side
    316,333.30x = 136,506,378,566.77
  5. Step 5: Solve for x
    x = 136,506,378,566.77/316,333.30
  6. Step 6: Final answer
    x = 431,527.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.