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Finding the Fourth Proportional to 533,636.16, 736,436.88 and 291,904.32

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Solution

The fourth proportional to 533,636.16, 736,436.88 and 291,904.32 is: 402,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,636.16 : 736,436.88 = 291,904.32 : x
  2. Step 2: Convert to fraction form
    533,636.16/736,436.88 = 291,904.32/x
  3. Step 3: Cross multiply
    533,636.16x = 736,436.88 × 291,904.32
  4. Step 4: Simplify right side
    533,636.16x = 214,969,106,679.32
  5. Step 5: Solve for x
    x = 214,969,106,679.32/533,636.16
  6. Step 6: Final answer
    x = 402,838.34

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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.