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Finding the Fourth Proportional to 688,962.95, 950,800.54 and 383,070.45

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Solution

The fourth proportional to 688,962.95, 950,800.54 and 383,070.45 is: 528,654.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,962.95 : 950,800.54 = 383,070.45 : x
  2. Step 2: Convert to fraction form
    688,962.95/950,800.54 = 383,070.45/x
  3. Step 3: Cross multiply
    688,962.95x = 950,800.54 × 383,070.45
  4. Step 4: Simplify right side
    688,962.95x = 364,223,590,718.04
  5. Step 5: Solve for x
    x = 364,223,590,718.04/688,962.95
  6. Step 6: Final answer
    x = 528,654.83

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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.