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Finding the Fourth Proportional to 626,554.84, 864,622.51 and 340,068.79

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Solution

The fourth proportional to 626,554.84, 864,622.51 and 340,068.79 is: 469,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,554.84 : 864,622.51 = 340,068.79 : x
  2. Step 2: Convert to fraction form
    626,554.84/864,622.51 = 340,068.79/x
  3. Step 3: Cross multiply
    626,554.84x = 864,622.51 × 340,068.79
  4. Step 4: Simplify right side
    626,554.84x = 294,031,130,782.46
  5. Step 5: Solve for x
    x = 294,031,130,782.46/626,554.84
  6. Step 6: Final answer
    x = 469,282.35

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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.