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Finding the Fourth Proportional to 860,588.84, 1,187,641.86 and 473,421.32

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Solution

The fourth proportional to 860,588.84, 1,187,641.86 and 473,421.32 is: 653,337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,588.84 : 1,187,641.86 = 473,421.32 : x
  2. Step 2: Convert to fraction form
    860,588.84/1,187,641.86 = 473,421.32/x
  3. Step 3: Cross multiply
    860,588.84x = 1,187,641.86 × 473,421.32
  4. Step 4: Simplify right side
    860,588.84x = 562,254,977,048.46
  5. Step 5: Solve for x
    x = 562,254,977,048.46/860,588.84
  6. Step 6: Final answer
    x = 653,337.52

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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.