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Finding the Fourth Proportional to 708,273.83, 977,140.43 and 435,868.80

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Solution

The fourth proportional to 708,273.83, 977,140.43 and 435,868.80 is: 601,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,273.83 : 977,140.43 = 435,868.80 : x
  2. Step 2: Convert to fraction form
    708,273.83/977,140.43 = 435,868.80/x
  3. Step 3: Cross multiply
    708,273.83x = 977,140.43 × 435,868.80
  4. Step 4: Simplify right side
    708,273.83x = 425,905,026,655.58
  5. Step 5: Solve for x
    x = 425,905,026,655.58/708,273.83
  6. Step 6: Final answer
    x = 601,328.20

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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.