Home / 1,117,688.40-1,676,532.60-407,480.40

Finding the Fourth Proportional to 1,117,688.40, 1,676,532.60 and 407,480.40

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Solution

The fourth proportional to 1,117,688.40, 1,676,532.60 and 407,480.40 is: 611,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,688.40 : 1,676,532.60 = 407,480.40 : x
  2. Step 2: Convert to fraction form
    1,117,688.40/1,676,532.60 = 407,480.40/x
  3. Step 3: Cross multiply
    1,117,688.40x = 1,676,532.60 × 407,480.40
  4. Step 4: Simplify right side
    1,117,688.40x = 683,154,174,461.04
  5. Step 5: Solve for x
    x = 683,154,174,461.04/1,117,688.40
  6. Step 6: Final answer
    x = 611,220.60

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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.