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Finding the Fourth Proportional to 405,373.70, 608,005.35 and 105,877.70

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Solution

The fourth proportional to 405,373.70, 608,005.35 and 105,877.70 is: 158,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,373.70 : 608,005.35 = 105,877.70 : x
  2. Step 2: Convert to fraction form
    405,373.70/608,005.35 = 105,877.70/x
  3. Step 3: Cross multiply
    405,373.70x = 608,005.35 × 105,877.70
  4. Step 4: Simplify right side
    405,373.70x = 64,374,208,045.70
  5. Step 5: Solve for x
    x = 64,374,208,045.70/405,373.70
  6. Step 6: Final answer
    x = 158,802.13

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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.