Home / 911,055.60-1,366,583.40-405,615.60

Finding the Fourth Proportional to 911,055.60, 1,366,583.40 and 405,615.60

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Solution

The fourth proportional to 911,055.60, 1,366,583.40 and 405,615.60 is: 608,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,055.60 : 1,366,583.40 = 405,615.60 : x
  2. Step 2: Convert to fraction form
    911,055.60/1,366,583.40 = 405,615.60/x
  3. Step 3: Cross multiply
    911,055.60x = 1,366,583.40 × 405,615.60
  4. Step 4: Simplify right side
    911,055.60x = 554,307,545,741.04
  5. Step 5: Solve for x
    x = 554,307,545,741.04/911,055.60
  6. Step 6: Final answer
    x = 608,423.40

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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.