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Finding the Fourth Proportional to 617,946.40, 865,715.46 and 617,946.40

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Solution

The fourth proportional to 617,946.40, 865,715.46 and 617,946.40 is: 865,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,946.40 : 865,715.46 = 617,946.40 : x
  2. Step 2: Convert to fraction form
    617,946.40/865,715.46 = 617,946.40/x
  3. Step 3: Cross multiply
    617,946.40x = 865,715.46 × 617,946.40
  4. Step 4: Simplify right side
    617,946.40x = 534,965,751,931.34
  5. Step 5: Solve for x
    x = 534,965,751,931.34/617,946.40
  6. Step 6: Final answer
    x = 865,715.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.