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Finding the Fourth Proportional to 596,970,643.80, 895,455,965.70 and 208,664,419.80

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Solution

The fourth proportional to 596,970,643.80, 895,455,965.70 and 208,664,419.80 is: 312,996,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    596,970,643.80 : 895,455,965.70 = 208,664,419.80 : x
  2. Step 2: Convert to fraction form
    596,970,643.80/895,455,965.70 = 208,664,419.80/x
  3. Step 3: Cross multiply
    596,970,643.80x = 895,455,965.70 × 208,664,419.80
  4. Step 4: Simplify right side
    596,970,643.80x = 186,849,799,539,239,232
  5. Step 5: Solve for x
    x = 186,849,799,539,239,232/596,970,643.80
  6. Step 6: Final answer
    x = 312,996,629.70

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Double scale
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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.