Home / 930,947.40-1,396,421.10-457,534.80

Finding the Fourth Proportional to 930,947.40, 1,396,421.10 and 457,534.80

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Solution

The fourth proportional to 930,947.40, 1,396,421.10 and 457,534.80 is: 686,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,947.40 : 1,396,421.10 = 457,534.80 : x
  2. Step 2: Convert to fraction form
    930,947.40/1,396,421.10 = 457,534.80/x
  3. Step 3: Cross multiply
    930,947.40x = 1,396,421.10 × 457,534.80
  4. Step 4: Simplify right side
    930,947.40x = 638,911,248,704.28
  5. Step 5: Solve for x
    x = 638,911,248,704.28/930,947.40
  6. Step 6: Final answer
    x = 686,302.20

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Double scale
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Similar ratio
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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.