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Finding the Fourth Proportional to 626,775.84, 864,956.88 and 340,298.28

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Solution

The fourth proportional to 626,775.84, 864,956.88 and 340,298.28 is: 469,615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,775.84 : 864,956.88 = 340,298.28 : x
  2. Step 2: Convert to fraction form
    626,775.84/864,956.88 = 340,298.28/x
  3. Step 3: Cross multiply
    626,775.84x = 864,956.88 × 340,298.28
  4. Step 4: Simplify right side
    626,775.84x = 294,343,338,538.17
  5. Step 5: Solve for x
    x = 294,343,338,538.17/626,775.84
  6. Step 6: Final answer
    x = 469,615.00

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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.