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Finding the Fourth Proportional to 318,368.46, 477,449.72 and 105,088.46

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Solution

The fourth proportional to 318,368.46, 477,449.72 and 105,088.46 is: 157,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,368.46 : 477,449.72 = 105,088.46 : x
  2. Step 2: Convert to fraction form
    318,368.46/477,449.72 = 105,088.46/x
  3. Step 3: Cross multiply
    318,368.46x = 477,449.72 × 105,088.46
  4. Step 4: Simplify right side
    318,368.46x = 50,174,455,802.23
  5. Step 5: Solve for x
    x = 50,174,455,802.23/318,368.46
  6. Step 6: Final answer
    x = 157,598.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.