Home / 832,885.60-1,249,328.40-359,240.80

Finding the Fourth Proportional to 832,885.60, 1,249,328.40 and 359,240.80

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Solution

The fourth proportional to 832,885.60, 1,249,328.40 and 359,240.80 is: 538,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,885.60 : 1,249,328.40 = 359,240.80 : x
  2. Step 2: Convert to fraction form
    832,885.60/1,249,328.40 = 359,240.80/x
  3. Step 3: Cross multiply
    832,885.60x = 1,249,328.40 × 359,240.80
  4. Step 4: Simplify right side
    832,885.60x = 448,809,733,878.72
  5. Step 5: Solve for x
    x = 448,809,733,878.72/832,885.60
  6. Step 6: Final answer
    x = 538,861.20

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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.