Home / 1,316,101.60-1,816,220.88-712,489.60

Finding the Fourth Proportional to 1,316,101.60, 1,816,220.88 and 712,489.60

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Solution

The fourth proportional to 1,316,101.60, 1,816,220.88 and 712,489.60 is: 983,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,101.60 : 1,816,220.88 = 712,489.60 : x
  2. Step 2: Convert to fraction form
    1,316,101.60/1,816,220.88 = 712,489.60/x
  3. Step 3: Cross multiply
    1,316,101.60x = 1,816,220.88 × 712,489.60
  4. Step 4: Simplify right side
    1,316,101.60x = 1,294,038,488,302.85
  5. Step 5: Solve for x
    x = 1,294,038,488,302.85/1,316,101.60
  6. Step 6: Final answer
    x = 983,236.01

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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.