Home / 708,624.64-977,905.07-454,123.45

Finding the Fourth Proportional to 708,624.64, 977,905.07 and 454,123.45

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Solution

The fourth proportional to 708,624.64, 977,905.07 and 454,123.45 is: 626,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,624.64 : 977,905.07 = 454,123.45 : x
  2. Step 2: Convert to fraction form
    708,624.64/977,905.07 = 454,123.45/x
  3. Step 3: Cross multiply
    708,624.64x = 977,905.07 × 454,123.45
  4. Step 4: Simplify right side
    708,624.64x = 444,089,624,160.89
  5. Step 5: Solve for x
    x = 444,089,624,160.89/708,624.64
  6. Step 6: Final answer
    x = 626,692.33

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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.