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Finding the Fourth Proportional to 734,405.04, 1,013,487.12 and 407,740.32

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Solution

The fourth proportional to 734,405.04, 1,013,487.12 and 407,740.32 is: 562,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,405.04 : 1,013,487.12 = 407,740.32 : x
  2. Step 2: Convert to fraction form
    734,405.04/1,013,487.12 = 407,740.32/x
  3. Step 3: Cross multiply
    734,405.04x = 1,013,487.12 × 407,740.32
  4. Step 4: Simplify right side
    734,405.04x = 413,239,562,624.68
  5. Step 5: Solve for x
    x = 413,239,562,624.68/734,405.04
  6. Step 6: Final answer
    x = 562,686.17

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Double scale
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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.