Home / 691,355.10-954,510.39-564,332.70

Finding the Fourth Proportional to 691,355.10, 954,510.39 and 564,332.70

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Solution

The fourth proportional to 691,355.10, 954,510.39 and 564,332.70 is: 779,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,355.10 : 954,510.39 = 564,332.70 : x
  2. Step 2: Convert to fraction form
    691,355.10/954,510.39 = 564,332.70/x
  3. Step 3: Cross multiply
    691,355.10x = 954,510.39 × 564,332.70
  4. Step 4: Simplify right side
    691,355.10x = 538,661,425,566.75
  5. Step 5: Solve for x
    x = 538,661,425,566.75/691,355.10
  6. Step 6: Final answer
    x = 779,138.57

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Double scale
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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.