Home / 931,547.60-1,396,399.80-457,845.20

Finding the Fourth Proportional to 931,547.60, 1,396,399.80 and 457,845.20

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Solution

The fourth proportional to 931,547.60, 1,396,399.80 and 457,845.20 is: 686,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,547.60 : 1,396,399.80 = 457,845.20 : x
  2. Step 2: Convert to fraction form
    931,547.60/1,396,399.80 = 457,845.20/x
  3. Step 3: Cross multiply
    931,547.60x = 1,396,399.80 × 457,845.20
  4. Step 4: Simplify right side
    931,547.60x = 639,334,945,710.96
  5. Step 5: Solve for x
    x = 639,334,945,710.96/931,547.60
  6. Step 6: Final answer
    x = 686,314.84

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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.