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Finding the Fourth Proportional to 705,280.05, 973,534.80 and 418,798.04

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Solution

The fourth proportional to 705,280.05, 973,534.80 and 418,798.04 is: 578,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,280.05 : 973,534.80 = 418,798.04 : x
  2. Step 2: Convert to fraction form
    705,280.05/973,534.80 = 418,798.04/x
  3. Step 3: Cross multiply
    705,280.05x = 973,534.80 × 418,798.04
  4. Step 4: Simplify right side
    705,280.05x = 407,714,461,244.12
  5. Step 5: Solve for x
    x = 407,714,461,244.12/705,280.05
  6. Step 6: Final answer
    x = 578,088.75

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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.