Home / 985,770.09-1,360,404.08-556,050.10

Finding the Fourth Proportional to 985,770.09, 1,360,404.08 and 556,050.10

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Solution

The fourth proportional to 985,770.09, 1,360,404.08 and 556,050.10 is: 767,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,770.09 : 1,360,404.08 = 556,050.10 : x
  2. Step 2: Convert to fraction form
    985,770.09/1,360,404.08 = 556,050.10/x
  3. Step 3: Cross multiply
    985,770.09x = 1,360,404.08 × 556,050.10
  4. Step 4: Simplify right side
    985,770.09x = 756,452,824,724.41
  5. Step 5: Solve for x
    x = 756,452,824,724.41/985,770.09
  6. Step 6: Final answer
    x = 767,372.47

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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.