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Finding the Fourth Proportional to 328,338.87, 453,088.11 and 190,507.11

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Solution

The fourth proportional to 328,338.87, 453,088.11 and 190,507.11 is: 262,888.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,338.87 : 453,088.11 = 190,507.11 : x
  2. Step 2: Convert to fraction form
    328,338.87/453,088.11 = 190,507.11/x
  3. Step 3: Cross multiply
    328,338.87x = 453,088.11 × 190,507.11
  4. Step 4: Simplify right side
    328,338.87x = 86,316,506,411.46
  5. Step 5: Solve for x
    x = 86,316,506,411.46/328,338.87
  6. Step 6: Final answer
    x = 262,888.48

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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.