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Finding the Fourth Proportional to 571,277.61, 855,981.45 and 346,706.87

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Solution

The fourth proportional to 571,277.61, 855,981.45 and 346,706.87 is: 519,492.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,277.61 : 855,981.45 = 346,706.87 : x
  2. Step 2: Convert to fraction form
    571,277.61/855,981.45 = 346,706.87/x
  3. Step 3: Cross multiply
    571,277.61x = 855,981.45 × 346,706.87
  4. Step 4: Simplify right side
    571,277.61x = 296,774,645,027.65
  5. Step 5: Solve for x
    x = 296,774,645,027.65/571,277.61
  6. Step 6: Final answer
    x = 519,492.87

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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.