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Finding the Fourth Proportional to 662,041.12, 913,612.56 and 360,236.32

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Solution

The fourth proportional to 662,041.12, 913,612.56 and 360,236.32 is: 497,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,041.12 : 913,612.56 = 360,236.32 : x
  2. Step 2: Convert to fraction form
    662,041.12/913,612.56 = 360,236.32/x
  3. Step 3: Cross multiply
    662,041.12x = 913,612.56 × 360,236.32
  4. Step 4: Simplify right side
    662,041.12x = 329,116,426,520.18
  5. Step 5: Solve for x
    x = 329,116,426,520.18/662,041.12
  6. Step 6: Final answer
    x = 497,123.84

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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.