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Finding the Fourth Proportional to 593,087.80, 889,631.70 and 553,430.20

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Solution

The fourth proportional to 593,087.80, 889,631.70 and 553,430.20 is: 830,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,087.80 : 889,631.70 = 553,430.20 : x
  2. Step 2: Convert to fraction form
    593,087.80/889,631.70 = 553,430.20/x
  3. Step 3: Cross multiply
    593,087.80x = 889,631.70 × 553,430.20
  4. Step 4: Simplify right side
    593,087.80x = 492,349,049,657.34
  5. Step 5: Solve for x
    x = 492,349,049,657.34/593,087.80
  6. Step 6: Final answer
    x = 830,145.30

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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.